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Question: What is the term for a random change in allele frequencies that occurs in a small population? Choices: A. evolution B. mutation C. genetic drift D. speciation Support: Genetic drift is a random change in allele frequencies that occurs in a small population. When a small number of parents produce just a few of... | allenai/sciq | a2e2_sft_train_558434 | [
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Question: Aerobic exercise helps improve the cardiovascular system, while what exercise causes muscles to get bigger and stronger? Choices: A. endurance B. enzymatic C. anaerobic D. skeletal Support: Aerobic exercise helps improve the cardiovascular system, while anaerobic exercise causes muscles to get bigger and stro... | allenai/sciq | a2e2_sft_train_558435 | [
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Question: An excessive posterior curvature of the thoracic region is also known as what? Choices: A. kyphosis B. lordosis C. osmosis D. babesiosis Support: Vertebral Column Developmental anomalies, pathological changes, or obesity can enhance the normal vertebral column curves, resulting in the development of abnormal ... | allenai/sciq | a2e2_sft_train_558436 | [
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Question: What are the two main divisions of the human nervous system? Choices: A. somatic and autonomic B. left and right C. central and identical D. central and peripheral Support: The two main divisions of the human nervous system are the central nervous system and the peripheral nervous system. The peripheral nervo... | allenai/sciq | a2e2_sft_train_558437 | [
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Question: What is composed of two strands of nucleotides in a double-helical structure? Choices: A. dna B. molecule C. RNA D. bacteria Support: DNA Double-Helical Structure DNA has a double-helical structure (Figure 2.23). It is composed of two strands, or polymers, of nucleotides. The strands are formed with bonds bet... | allenai/sciq | a2e2_sft_train_558438 | [
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Question: The body is made up of how many types of tissue? Choices: A. six B. seven C. four D. five Support: As for all animals, your body is made of four types of tissue: epidermal, muscle, nerve, and connective tissues. Plants, too, are built of tissues, but not surprisingly, their very different lifestyles derive fr... | allenai/sciq | a2e2_sft_train_558439 | [
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Question: The great astronomer edwin hubble discovered that all distant galaxies are receding from our milky way galaxy with velocities proportional to their what? Choices: A. distances B. dimensions C. paths D. masses Support: (a) A jet airplane flying from Darwin, Australia, has an air speed of 260 m/s in a direction... | allenai/sciq | a2e2_sft_train_558440 | [
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Question: What is friction that acts on objects while it is rolling over a surface called? Choices: A. rolling friction B. blowing friction C. opposing friction D. surface friction Support: Rolling friction is friction that acts on objects when they are rolling over a surface. Rolling friction is much weaker than slidi... | allenai/sciq | a2e2_sft_train_558441 | [
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Question: Traditionally, mammals were divided into groups based on what? Choices: A. their colors B. their sizes C. their characteristics D. their behaviors Support: Traditionally, mammals were divided into groups based on their characteristics. Scientists took into consideration their anatomy (body structure), their h... | allenai/sciq | a2e2_sft_train_558442 | [
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Question: What type of bonds do alkanes only contain? Choices: A. hydrogen-carbon bonds B. carbon-carbon single bonds C. carbon-hydrogen bonds D. hydrogen bonds Support: Alkanes contain only carbon-carbon single bonds. Answer: B. carbon-carbon single bonds | allenai/sciq | a2e2_sft_train_558443 | [
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Question: Which part of the wave helps make the wave bend and cause refraction? Choices: A. shallow part B. heavy part C. dense part D. bright part Support: Lymph that collects in tissues slowly passes into tiny lymph vessels. Lymph then travels from smaller to larger lymph vessels. Muscles around the lymph vessels con... | allenai/sciq | a2e2_sft_train_558444 | [
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Question: What are passed from one generation to the next so species can survive? Choices: A. fluctuations B. selections C. mutations D. adaptatioins Support: Answer: D. adaptatioins | allenai/sciq | a2e2_sft_train_558445 | [
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Question: What kind of lines does a diffraction grating produce? Choices: A. nearly spaced lines B. randomly spaced lines C. evenly spaced lines D. properly spaced lines Support: 27.5 Single Slit Diffraction Light passing through a single slit forms a diffraction pattern somewhat different from those formed by double s... | allenai/sciq | a2e2_sft_train_558446 | [
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Question: Which type of ferns have yellow sporangia and no leaves? Choices: A. Boston fern B. Ostrich fern C. Hothouse fern D. whisk ferns Support: Forest and Kim Starr/Starr Environmental. Whisk ferns have yellow sporangia and no leaves . CC BY 3.0. Answer: D. whisk ferns | allenai/sciq | a2e2_sft_train_558447 | [
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Question: Ice masses, acquifers, and the deep ocean are examples of water what? Choices: A. seas B. lakes C. fields D. reservoirs Support: The atmosphere is an exchange pool for water. Ice masses, aquifers, and the deep ocean are water reservoirs. Answer: D. reservoirs | allenai/sciq | a2e2_sft_train_558448 | [
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Question: This heat is used to convert water into steam, which is then used to turn a turbine, thus generating what? Choices: A. solar power B. electrical power C. radiation power D. heating power Support: The generation of electricity is critical for the operation of nearly all aspects of modern society. The following... | allenai/sciq | a2e2_sft_train_558449 | [
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Question: What atmospheric layer lies above the highest altitude an airplane can go and below the lowest altitude a spacecraft can orbit? Choices: A. mesosphere B. stratosphere C. thermosphere D. troposphere Support: Not so fast. The mesosphere is the least known layer of the atmosphere. The mesosphere lies above the h... | allenai/sciq | a2e2_sft_train_558450 | [
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Question: Where are sensors for thermoregulation concentrated in the brain? Choices: A. medulla B. pituitary gland C. thyroid D. the hypothalamus Support: Answer: D. the hypothalamus | allenai/sciq | a2e2_sft_train_558451 | [
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Question: What is the first step in the breakdown of glucose to extract energy for cellular metabolism? Choices: A. mutation B. photosynthesis C. glycolysis D. mitosis Support: 7.2 | Glycolysis By the end of this section, you will be able to: • Describe the overall result in terms of molecules produced in the breakdown... | allenai/sciq | a2e2_sft_train_558452 | [
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Question: What charge do atoms carry? Choices: A. neutral B. positive C. negative D. static Support: Atoms, which are always neutral in electric charge, contain electrons as well as protons and neutrons. An electron has an electrical charge of -1. If an atom has three electrons, infer how many protons it has. Answer: A... | allenai/sciq | a2e2_sft_train_558453 | [
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Question: The pleura that surrounds the lungs consists of how many layers? Choices: A. two B. one C. three D. four Support: The pleura that surrounds the lungs consists of two layers, the ________. visceral and parietal pleurae. mediastinum and parietal pleurae. visceral and mediastinum pleurae. none of the above 14. W... | allenai/sciq | a2e2_sft_train_558454 | [
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Question: Organisms that obtain food from outside themselves (i.e. they don't make their own food) are known as what? Choices: A. zygotes B. heterotrophs C. fungi D. autotrophs Support: Fungi are heterotrophs, meaning they obtain food from outside themselves. Answer: B. heterotrophs | allenai/sciq | a2e2_sft_train_558455 | [
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Question: In scientific investigations, descriptive statistics are useful for summarizing the characteristics of large what? Choices: A. tissues B. questions C. organisms D. samples Support: The girls in the picture above make up a small sample—there are only four of them. In scientific investigations, samples may incl... | allenai/sciq | a2e2_sft_train_558456 | [
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Question: The process of the cytoplasm splitting apart and the cell pinching in two is known as what? Choices: A. mitosis B. budding C. electrolysis D. cytokinesis Support: The cell wall grows toward the center of the cell. The cytoplasm splits apart, and the cell pinches in two. This is called cytokinesis . Answer: D.... | allenai/sciq | a2e2_sft_train_558457 | [
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Question: What kind of mountainous formation can often be found near trenches? Choices: A. volcanoes B. craters C. caves D. earthquakes Support: deep sea trenches : Trenches are found in the sea. Some are near the edges of continents. Trenches are found near chains of active volcanoes. An example is the line of the ver... | allenai/sciq | a2e2_sft_train_558458 | [
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Question: Because it can be controlled intentionally, skeletal muscle is also called what type of muscle? Choices: A. involuntary B. automatic C. voluntary D. necessary Support: Skeletal muscle tissue forms skeletal muscles, which attach to bones and sometimes the skin and control locomotion and any other movement that... | allenai/sciq | a2e2_sft_train_558459 | [
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Question: What effect in the atmosphere ensures that the earth maintains the correct temperature to support life? Choices: A. greenhouse effect B. smog effect C. coriolis effect D. ozone effect Support: When sunlight heats Earth’s surface, some of the heat radiates back into the atmosphere. Some of this heat is absorbe... | allenai/sciq | a2e2_sft_train_558460 | [
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Question: Felsic, intermediate, mafic, and ultramafic are types of composition of what rock group? Choices: A. metamorphic B. asteroids C. Sedimentary D. igneous Support: Igneous rocks are classified by composition and texture. The composition can be felsic, intermediate, mafic, or ultramafic. The composition depends o... | allenai/sciq | a2e2_sft_train_558461 | [
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Question: What is the base of nearly all food chains on earth? Choices: A. atherosclerosis B. glycolysis C. photosynthesis D. synthesis Support: Photosynthesis is the base of nearly all food chains on Earth. This is true of marine food chains, too. Answer: C. photosynthesis | allenai/sciq | a2e2_sft_train_558462 | [
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Question: The skull is a part of a vertebrate endoskeleton that encloses and protects what organ? Choices: A. brain B. heart C. lung D. nervous system Support: part of a vertebrate endoskeleton that encloses and protects the brain; also called the skull. Answer: A. brain | allenai/sciq | a2e2_sft_train_558463 | [
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Question: The global pattern of precipitation is influenced by movements of what? Choices: A. air masses B. air valleys C. pollution masses D. clouds Support: The global pattern of precipitation is influenced by movements of air masses. For example, there is a global belt of dry air masses and low precipitation at abou... | allenai/sciq | a2e2_sft_train_558464 | [
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Question: What is the name of the region of a magnet that has the most pull? Choices: A. center B. pole C. tail D. grid Support: Imagine a huge bar magnet passing through Earth’s axis, as in the Figure below . This is a good representation of Earth as a magnet. Like a bar magnet, Earth has north and south magnetic pole... | allenai/sciq | a2e2_sft_train_558465 | [
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Question: How many major forces of elevation cause allele frequencies to change? Choices: A. five B. one C. three D. four Support: There are four major forces of evolution that cause allele frequencies to change. They are mutation, gene flow, genetic drift, and natural selection. Answer: D. four | allenai/sciq | a2e2_sft_train_558466 | [
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Question: Where in the atom is a neutron found? Choices: A. the nucleus B. electron C. proton D. orbit Support: A neutron is one of three main particles that make up the atom. It is found in the nucleus and is neutral in electric charge. It has about the same mass and diameter as a proton. Neutrons are found in all ato... | allenai/sciq | a2e2_sft_train_558467 | [
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Question: In physics, what is defined as the average kinetic energy of the particles of matter? Choices: A. friction B. density C. temperature D. magnetism Support: No doubt you already have a good idea of what temperature is. You might say that it’s how warm or cool something feels. In physics, temperature is defined ... | allenai/sciq | a2e2_sft_train_558468 | [
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Question: What organelles are known as the "power plants" of the cell? Choices: A. plastid B. mitochondria C. golgi body D. flagella Support: They have lots of mitochondria. Mitochondria are called the power plants of the cell, as these organelles are where most of the cell's energy is produced. Cells that need lots of... | allenai/sciq | a2e2_sft_train_558469 | [
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Question: Dalton's law and henry's law both describe aspects of what type of exchange? Choices: A. energy B. gas C. electron D. liquid Support: 22.4 Gas Exchange The behavior of gases can be explained by the principles of Dalton’s law and Henry’s law, both of which describe aspects of gas exchange. Dalton’s law states ... | allenai/sciq | a2e2_sft_train_558470 | [
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Question: What vesicles store neurotransmitters? Choices: A. dendritic B. hydrophobic C. synaptic D. Golgi apparatus Support: Secretory Vesicles contain materials that are to be excreted from the cell, such as wastes or hormones . Secretory vesicles include synaptic vesicles and vesicles in endocrine tissues. Synaptic ... | allenai/sciq | a2e2_sft_train_558471 | [
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Question: What temperature scale is obtained by adding 273 degrees from the corresponding celsius temperature? Choices: A. ph scale B. kelvin scale C. whittle scale D. seismic scale Support: The Celsius scale is the standard SI temperature scale. It is equal to the Kelvin scale if you minus 273 from the Celsius reading... | allenai/sciq | a2e2_sft_train_558472 | [
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Question: Hemoglobin is a large molecule made up of proteins and iron. it consists of four folded chains of a protein called this? Choices: A. peptide B. insulin C. globin D. histone Support: Hemoglobin Hemoglobin is a large molecule made up of proteins and iron. It consists of four folded chains of a protein called gl... | allenai/sciq | a2e2_sft_train_558473 | [
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Question: A new species is said to have evolved if separated members of a species evolve genetic differences that prevent what from occurring with the original members?? Choices: A. evolution B. interbreeding C. extinction D. re-population Support: Assume that some members of a species become geographically separated f... | allenai/sciq | a2e2_sft_train_558474 | [
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Question: What term describes the orientation of a body lying face-down? Choices: A. Under B. Supine C. prone D. Diagnal Support: A body that is lying down is described as either prone or supine. Prone describes a face-down orientation, and supine describes a face up orientation. These terms are sometimes used in descr... | allenai/sciq | a2e2_sft_train_558475 | [
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Question: What happens to energy when an atom gains an electron? Choices: A. it is used B. it increases C. it is folded D. it is released Support: A: Energy is released when an atom gains an electron. Halogens release the most energy when they form ions. As a result, they are very reactive elements. Answer: D. it is re... | allenai/sciq | a2e2_sft_train_558476 | [
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Question: What is the name of the second most electronegative element? Choices: A. Hydrogen B. oxygen C. nitrogen D. carbon Support: Oxygen has an oxidation state of -2 in most of its compounds. Oxygen is the second most electronegative element, so it also tends to be assigned all shared electrons. Exceptions include O... | allenai/sciq | a2e2_sft_train_558477 | [
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Question: What is the term for species evolving together? Choices: A. coevolution B. specmutation C. interconnection D. conjuration Support: Coevolution occurs when species evolve together. This often happens in species that have symbiotic relationships. Examples include flowering plants and their pollinators. Answer: ... | allenai/sciq | a2e2_sft_train_558478 | [
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Question: Where do the eggs develop? Choices: A. the follicles B. the uterus C. the ovaries D. the glands Support: Answer: C. the ovaries | allenai/sciq | a2e2_sft_train_558479 | [
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Question: What's the other term for your wind pipe? Choices: A. cochlea B. trachea C. cornea D. esophagus Support: The trachea , or wind pipe, is a long tube that leads down to the chest. Answer: B. trachea | allenai/sciq | a2e2_sft_train_558480 | [
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Question: When food is scarce, starving cells secrete a molecule that stimulates neighboring cells to do what? Choices: A. aggregate B. hoard energy C. compete D. die off Support: Answer: A. aggregate | allenai/sciq | a2e2_sft_train_558481 | [
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Question: What do cells secrete that binds to receptors? Choices: A. stress B. factor C. endorphans D. proteins Support: Answer: B. factor | allenai/sciq | a2e2_sft_train_558482 | [
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Question: What is the term for the tube that carries sound waves into the ear? Choices: A. ear canal B. sound canal C. tone canal D. flap canal Support: The ear canal is a tube that carries sound waves into the ear. The sound waves travel through the air inside the ear canal to the eardrum. Answer: A. ear canal | allenai/sciq | a2e2_sft_train_558483 | [
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Question: In the cardiovascular system, what blood vessels carry blood away from the heart? Choices: A. capillaries B. cilia C. arteries D. veins Support: The blood vessels are an important part of the cardiovascular system. They connect the heart to every cell in the body. Arteries carry blood away from the heart, whi... | allenai/sciq | a2e2_sft_train_558484 | [
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Question: Molecules in the gas phase can collide with the liquid surface and reenter the liquid via what? Choices: A. condensation B. combustion C. liquidation D. fermentation Support: pressure above the liquid. Molecules in the gas phase can collide with the liquid surface and reenter the liquid via condensation. Even... | allenai/sciq | a2e2_sft_train_558485 | [
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Question: What guards the opening between the right atrium and the right ventricle? Choices: A. superior vena cava B. tricuspid valve C. aorta D. brachiocephalic trunk Support: Right Atrium The right atrium serves as the receiving chamber for blood returning to the heart from the systemic circulation. The two major sys... | allenai/sciq | a2e2_sft_train_558486 | [
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Question: The water cycle involves movement of water between air and what? Choices: A. animals B. tree C. land D. air Support: Answer: C. land | allenai/sciq | a2e2_sft_train_558487 | [
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Question: When we consider a chemical reaction, we need to take into account both the system and what? Choices: A. sorroundings B. date C. fluctuations D. time Support: When we consider a chemical reaction, we need to take into account both the system and the surroundings. The system includes the components involved in... | allenai/sciq | a2e2_sft_train_558488 | [
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Question: What is a layer of tissue that lies between the shell and the body? Choices: A. node B. stem C. mantle D. silt Support: Two unique features of mollusks are the mantle and radula (see Figure above ). The mantle is a layer of tissue that lies between the shell and the body. It secretes calcium carbonate to form... | allenai/sciq | a2e2_sft_train_558489 | [
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Question: In what country can some of the largest natural crystals be found? Choices: A. mexico B. spain C. germany D. canada Support: Some of the largest, and most beautiful, natural crystals can be found in the Naica mine, in Mexico. These gypsum crystals were formed over thousands of years. Groundwater that is rich ... | allenai/sciq | a2e2_sft_train_558490 | [
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Question: What are the primary producers in terrestrial biomes? Choices: A. soil B. gases C. plants D. animals Support: Plants are the primary producers in terrestrial biomes. They make food for themselves and other organisms by photosynthesis. The major plants in a given biome, in turn, help determine the types of ani... | allenai/sciq | a2e2_sft_train_558491 | [
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Question: Where are aerofoils found? Choices: A. birds and busses B. birds and airplanes C. airplanes and plants D. birds and cars Support: Birds also have wings that function as an aerofoil . The surface of the aerofoil is curved to help the bird control and use the air currents to fly. Aerofoils are also found on the... | allenai/sciq | a2e2_sft_train_558492 | [
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Question: What is the si unit for pressure? Choices: A. pascal B. le C. watt D. laurent Support: Summary Four quantities must be known for a complete physical description of a sample of a gas: temperature, volume, amount, and pressure. Pressure is force per unit area of surface; the SI unit for pressure is the pascal (... | allenai/sciq | a2e2_sft_train_558493 | [
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Question: Marine fishes take in divalent ions by incessantly drinking what? Choices: A. seawater B. sand C. algae D. oxygen Support: Answer: A. seawater | allenai/sciq | a2e2_sft_train_558494 | [
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Question: The simplest and smallest particle of matter that still has chemical properties of the element is called? Choices: A. a molecule B. a nucleus C. an isotope D. an atom Support: Inside of elements, you will find identical atoms. An atom is the simplest and smallest particle of matter that still has chemical pro... | allenai/sciq | a2e2_sft_train_558495 | [
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Question: Frequency and intensity are two measurable properties of what? Choices: A. troughs B. wave C. lines D. heat Support: All waves can be defined in terms of their frequency and intensity. Answer: B. wave | allenai/sciq | a2e2_sft_train_558496 | [
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Question: While most mammals give birth to live young, monotremes can do what? Choices: A. reproduce asexually B. steal eggs C. lay eggs D. adopt offspring Support: Monotremes can lay eggs, but most mammals give birth to live young. Answer: C. lay eggs | allenai/sciq | a2e2_sft_train_558497 | [
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Question: What happens to old oceanic crust at convergent boundaries? Choices: A. destroyed B. created C. dissolves D. emerges Support: It’s much easier to precisely make mirrors than to precisely make glass lenses. For that reason, reflectors can be made larger than refractors. Larger telescopes can collect more light... | allenai/sciq | a2e2_sft_train_558498 | [
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Question: When electrons are shared between two atoms, they make a bond called a what? Choices: A. covalent bond B. metallic bond C. hydrogen bond D. ionic bond Support: Ionic bonding typically occurs when it is easy for one atom to lose one or more electrons and another atom to gain one or more electrons. However, som... | allenai/sciq | a2e2_sft_train_558499 | [
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Question: What happens to the temperature of matter as light is absorbed? Choices: A. it increases B. it triples C. it drops D. it stays the same Support: http://www. chem. ufl. edu/~itl/2045/lectures/lec_d. html. Answer: A. it increases | allenai/sciq | a2e2_sft_train_558500 | [
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Question: By shocking ocean water, earthquakes can cause what deadly ocean waves? Choices: A. deep currents B. tsunamis C. ebb tides D. typhoons Support: Earthquakes can cause tsunamis . These deadly ocean waves may result from any shock to ocean water. A shock could be a meteorite impact, landslide, or a nuclear explo... | allenai/sciq | a2e2_sft_train_558501 | [
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Question: Where are the desmosome found in a cell? Choices: A. epithelial B. neuron C. epithelium D. coating Support: A desmosome is a cell junction specialized for cell-to-cell adhesion. They are found in simple and stratified squamous epithelium, and in muscle tissue where they bind muscle cells to one another. These... | allenai/sciq | a2e2_sft_train_558502 | [
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Question: An action potential that starts at the axon hillock moves along the axon only toward what? Choices: A. nerve endings B. polar synapses C. the synaptic terminals D. ionic pathways Support: Answer: C. the synaptic terminals | allenai/sciq | a2e2_sft_train_558503 | [
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Question: Fission is a type of radioactivity in which large nuclei spontaneously break apart into what? Choices: A. light nuclei B. faster nuclei C. smaller nuclei D. active nuclei Support: Fission is a type of radioactivity in which large nuclei spontaneously break apart into smaller nuclei. Answer: C. smaller nuclei | allenai/sciq | a2e2_sft_train_558504 | [
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Question: Bones are the main organs of what system, which also includes cartilage and ligaments? Choices: A. endocrine system B. lymphatic system C. digestive system D. skeletal system Support: Bones are the main organs of the skeletal system. The skeletal system also includes cartilage and ligaments. Answer: D. skelet... | allenai/sciq | a2e2_sft_train_558505 | [
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Question: Most waves strike the shore at an angle. this causes what? Choices: A. erosion B. tide C. longshore drift D. fontaine drift Support: Below the topsoil is the “B“ horizon. This is also called the subsoil . Soluble minerals and clays accumulate in the subsoil. Because it has less organic material, this layer is... | allenai/sciq | a2e2_sft_train_558506 | [
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Question: What is the difference between the daily high and the daily low? Choices: A. sunrise and sunset B. tidal change C. weather forecast D. margin of error Support: The difference between the daily high and the daily low is the tidal range. Answer: B. tidal change | allenai/sciq | a2e2_sft_train_558507 | [
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Question: Spermatogonia are the stem cells of what male sex organs? Choices: A. ovaries B. Prostate C. Epididymis D. testes Support: Germ Cells The least mature cells, the spermatogonia (singular = spermatogonium), line the basement membrane inside the tubule. Spermatogonia are the stem cells of the testis, which means... | allenai/sciq | a2e2_sft_train_558508 | [
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Question: Sensory neurons transmit nerve impulses from sense organs and internal organs to the brain via the? Choices: A. spinal column B. nervous system C. spinal cord D. nerve endings Support: Sensory neurons transmit nerve impulses from sense organs and internal organs to the brain via the spinal cord. In other word... | allenai/sciq | a2e2_sft_train_558509 | [
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Question: Sexually reproducing organisms alternate between which stages? Choices: A. diploid and traploid B. haploid and diploid C. binary and diploid D. binary and haploid Support: CHAPTER SUMMARY 7.1 Sexual Reproduction Nearly all eukaryotes undergo sexual reproduction. The variation introduced into the reproductive ... | allenai/sciq | a2e2_sft_train_558510 | [
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Question: Acids turn blue litmus paper which color? Choices: A. red B. white C. grey D. purple Support: Certain indicator compounds, such as litmus, can be used to detect acids. Acids turn blue litmus paper red. Answer: A. red | allenai/sciq | a2e2_sft_train_558511 | [
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Question: The development of a head region is called what? Choices: A. trichina B. spore C. cephalization D. cocklebur Support: Most flatworms have a distinct head region that includes nerve cells and sensory organs, such as eyespots. The development of a head region, called cephalization , evolved at the same time as ... | allenai/sciq | a2e2_sft_train_558512 | [
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Question: Which hormone helps cells absorb sugar from the blood? Choices: A. cortisol B. estrogen C. insulin D. adrenaline Support: Endocrine system: A high concentration of sugar in the blood triggers secretion of insulin by an endocrine gland called the pancreas. Insulin is a hormone that helps cells absorb sugar fro... | allenai/sciq | a2e2_sft_train_558513 | [
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Question: What is the number of electrons equal to in every electrically neutral atom? Choices: A. nucleus B. molecules C. Electrons D. protons Support: Electron Shells and the Bohr Model It should be stressed that there is a connection between the number of protons in an element, the atomic number that distinguishes o... | allenai/sciq | a2e2_sft_train_558514 | [
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Question: Does climate change have a positive or negative effect on reproductive success? Choices: A. negative B. neither C. positive D. both Support: Answer: A. negative | allenai/sciq | a2e2_sft_train_558515 | [
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Question: What is the most common form of dwarfism in humans? Choices: A. achondroplasia B. malnutrition C. anemia D. alopecia Support: It can be. Achondroplasia is the most common form of dwarfism in humans, and it is caused by a dominant mutation. The mutation can be passed from one generation to the next. Over 95% o... | allenai/sciq | a2e2_sft_train_558516 | [
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Question: What is the term for groups of three successive nucleotide bases in dna? Choices: A. triple play B. triads C. triplets D. tertiary bases Support: Overview of Transcription. Transcription uses the sequence of bases in a strand of DNA to make a complementary strand of mRNA. Triplets are groups of three successi... | allenai/sciq | a2e2_sft_train_558517 | [
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Question: The coccyx, or tailbone, results from the fusion of four small what? Choices: A. rib vertebrae B. coccygeal vertebrae C. alangulam vertebrae D. arsine vertebrae Support: Regions of the Vertebral Column The vertebral column originally develops as a series of 33 vertebrae, but this number is eventually reduced ... | allenai/sciq | a2e2_sft_train_558518 | [
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Question: What is a pure substance that cannot be separated into any other substances called? Choices: A. light B. element C. Cells D. Spears Support: An element is a pure substance that cannot be separated into any other substances. There are 92 naturally occurring elements. Answer: B. element | allenai/sciq | a2e2_sft_train_558519 | [
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Question: How many different types of stresses are there? Choices: A. five B. four C. seven D. three Support: Stress is the force applied to a rock. There are four types of stresses:. Answer: B. four | allenai/sciq | a2e2_sft_train_558520 | [
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Question: A molecule has two structures that can be generated. what is this called? Choices: A. isomerism B. ethnocentrism C. congruence D. resonance hybrids Support: The cis isomer has the two single hydrogen atoms on the same side of the molecule, while the trans isomer has them on opposite sides of the molecule. In ... | allenai/sciq | a2e2_sft_train_558521 | [
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Question: An antigen is a molecule that reacts with some component of the what response? Choices: A. digestion B. hormones C. fight or flight D. immune Support: Chapter 42 1 Figure 42.11 C 3 Figure 42.16 If the blood of the mother and fetus mixes, memory cells that recognize the Rh antigen can form late in the first pr... | allenai/sciq | a2e2_sft_train_558522 | [
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Question: What bodily system is primarily responsible for fighting pathogens in the body? Choices: A. Muscular B. Cardiovascular C. immune D. digestion Support: 21.5 | The Immune Response against Pathogens By the end of this section, you will be able to: • Explain the development of immunological competence • Describe ... | allenai/sciq | a2e2_sft_train_558523 | [
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Question: Displacement, velocity, acceleration, and force are examples of what type of quantity that has magnitude and direction? Choices: A. cycles B. frequency C. wave D. vector Support: Vectors in Two Dimensions A vector is a quantity that has magnitude and direction. Displacement, velocity, acceleration, and force,... | allenai/sciq | a2e2_sft_train_558524 | [
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Question: Gases such as co2 and methane can trap what energy in earth's atmosphere, before radiating it into space? Choices: A. potential energy B. mechanical energy C. thermal energy D. sunlight energy Support: Thermal energy can be trapped in Earth’s atmosphere by gases such as CO2, water vapor, methane, and chlorofl... | allenai/sciq | a2e2_sft_train_558525 | [
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Question: What happens when heated water is released into a body of water? Choices: A. thermal pollution B. geysers C. gaseous pollution D. crystalline pollution Support: If heated water is released into a body of water, it may cause thermal pollution. Thermal pollution is a reduction in the quality of water because of... | allenai/sciq | a2e2_sft_train_558526 | [
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Question: What term is used to describe a chemical released by an animal that affects the behavior or physiology of animals of the same species? Choices: A. pheromone B. isolate C. amino D. enzyme Support: The amount of material left over after a certain number of half-lives can be easily calculated. Answer: A. pheromo... | allenai/sciq | a2e2_sft_train_558527 | [
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Question: Producers at the base of ecological food webs are also known as? Choices: A. autotrophic B. mutualistic C. symbiotic D. endoscopic Support: Answer: A. autotrophic | allenai/sciq | a2e2_sft_train_558528 | [
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Question: What is the term for the gas in smog that can damage plants? Choices: A. ozone B. dioxide C. carbon D. sulphur Support: The ozone in smog may damage plants. The effects of ozone add up over time. Plants such as trees, which normally live a long time, are most affected. Entire forests may die out if ozone leve... | allenai/sciq | a2e2_sft_train_558529 | [
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Question: What must happen for two ions to form an ionic bond? Choices: A. Two ions need to be the same size B. two ions need to have neutral charges C. two ions need to have the same charge D. two ions need to have opposite charges Support: Answer: D. two ions need to have opposite charges | allenai/sciq | a2e2_sft_train_558530 | [
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Question: What is the study of the similarities and differences in the embryos of different species? Choices: A. prenatal biology B. diversified embryology C. comparative embryology D. example embryology Support: Comparative embryology is the study of the similarities and differences in the embryos of different species... | allenai/sciq | a2e2_sft_train_558531 | [
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Question: What are the main organs of the respiratory system? Choices: A. ovaries B. intestines C. kidneys D. lungs Support: The lungs are the main organs of the respiratory system. This is where gases are exchanged between the air and the blood. Gases are also transported by the blood and exchanged between the blood a... | allenai/sciq | a2e2_sft_train_558532 | [
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Question: What do you call the traits that allow a plant, animal, or other organism to survive and reproduce in its environment? Choices: A. settings B. adaptations C. additions D. advantages Support: Every plant and animal depends on its traits to survive. Survival may include getting food, building homes, and attract... | allenai/sciq | a2e2_sft_train_558533 | [
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