question stringlengths 68 502 | answer stringclasses 4
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|---|---|
Question: Both energy and heat can be expressed in units of what?
Options:
A. ohms
B. amperes
C. joules
D. velocities | C |
Question: In fact, when sitting in the sun, many ectothermic lizards have higher body temperatures than what?
Options:
A. insects
B. carnivores
C. primates
D. mammals | D |
Question: In binary fission how many times does a cell split?
Options:
A. four
B. six
C. two
D. one | C |
Question: What do nonvascular plants reproduce with?
Options:
A. vascular plants
B. toxins
C. spores
D. photosynthesis | C |
Question: The most powerful or influential individual in a group is sometimes called what?
Options:
A. superior
B. beta
C. dominant
D. gamma | C |
Question: What is the first stage of cellular respiration?
Options:
A. amniocentesis
B. glycolysis
C. hydrolysis
D. photosynthesis | B |
Question: In which direction does heat always flow through objects?
Options:
A. from hotter to cooler
B. from cooler to hotter
C. from low to high
D. from left to right | A |
Question: Like sharks, nearly the entire human skeleton during a specific pre-birth developmental stage is made of what connective tissue?
Options:
A. cartilage
B. phloem
C. collagen
D. chloroplasm | A |
Question: When this forms underground, volcanoes rise?
Options:
A. soil
B. magma
C. pumice
D. CO2 | B |
Question: Hormones produced by what gland in the neck increase the rate of metabolism in cells throughout the body?
Options:
A. pituitary
B. thyroid
C. thymus
D. kidney | B |
Question: When the ventricles begin to contract, pressure within the ventricles rises and blood flows toward the area of lowest pressure, which is initially in the atria. this backflow causes the cusps of the tricuspid and mitral (bicuspid) valves to close. these valves are tied down to the papillary muscles by these?
... | B |
Question: What is the skin of most reptiles covered with?
Options:
A. scales
B. cuticle
C. pores
D. hairs | A |
Question: Gasoline, natural gas, fuel oil, diesel fuel, jet fuel, coal, kerosene, and propane are examples of what type of fule?
Options:
A. polymerization fuel
B. hydrocarbon fuel
C. nuclear fue
D. electrolysis fuel | B |
Question: Nearly all life processes depend on what substance, which is involved in biochemical reactions?
Options:
A. hydrocarbons
B. water
C. food
D. air | B |
Question: What has increased in the atmosphere throughout the history of the earth?
Options:
A. wind
B. oxygen
C. nitrogen
D. carbon | B |
Question: Which two states of matter have definite volumes?
Options:
A. solids and liquids
B. bacteria and liquids
C. GAS AND LIQUIDS
D. contrasts and liquids | A |
Question: Tendon, cartilage, and bone are examples of what type of tissue that supports and binds other tissues of the body?
Options:
A. repetitive tissue
B. muscular tissue
C. untreated tissue
D. connective tissue | D |
Question: What is the sac-like organ at the end of the esophagus?
Options:
A. stomach
B. larynx
C. rectum
D. appendix | A |
Question: Which class of acids acetic acid (ch 3 cooh) belongs to?
Options:
A. strong acids
B. anorganic acids
C. common acids
D. organic acids | D |
Question: What happens to the total energy of the system when heat is positive?
Options:
A. it decreases
B. nothing
C. it increases
D. it remains constant | C |
Question: What type of species can alternate between medusa and polyp forms?
Options:
A. mollusks
B. cnidarian
C. crocodilian
D. chordata | B |
Question: Extensive and intensive are categories of properties that apply to what?
Options:
A. weight
B. matter
C. volume
D. height | B |
Question: The vertebrate circulatory system enables blood to deliver ________ and remove wastes throughout the body.
Options:
A. oxygen and nutrients
B. acid and nutrients
C. fluid and nutrients
D. hydrogen and nutrients | A |
Question: By what kind of change can a chemical change be reversed?
Options:
A. another carbon change
B. another thermal change
C. another radioactive change
D. another chemical change | D |
Question: Earthquakes at convergent plate boundaries mark the location of the what?
Options:
A. shorting lithosphere
B. abducting lithosphere
C. speeding lithosphere
D. subducting lithosphere | D |
Question: New seafloor forms when what object cools?
Options:
A. ash
B. rain
C. debris
D. lava | D |
Question: What are groups of atoms that behave as a single unit called?
Options:
A. particles
B. molecules
C. ions
D. protons | B |
Question: Hormones cause cellular changes by binding to receptors on these?
Options:
A. target cells
B. able cells
C. reach cells
D. fighter cells | A |
Question: Food provides what type of energy needed by organisms, which is stored in bonds?
Options:
A. caffeine
B. calories
C. chemical energy
D. radiation energy | C |
Question: Catabolic reactions involve breaking what?
Options:
A. molecules
B. bonds
C. levels
D. metals | B |
Question: Scientists explain the world based on what?
Options:
A. patterns
B. observations
C. theories
D. changes | B |
Question: What is the general name for saturated hydrocarbons?
Options:
A. petrolatums
B. halides
C. alkanes
D. enzymes | C |
Question: Changing electric and mnagnetic fields radiate outward when?
Options:
A. firing particles accelerate
B. particles multiply
C. particles lose their charge
D. charged particles accelerate | D |
Question: What significant part of the cell do prokaryotic cells lack?
Options:
A. a cell wall
B. mitochondrial dna
C. a nucleus
D. a ribosome | C |
Question: Where do ectotherms get most of their heat?
Options:
A. internally
B. metabolism
C. food
D. external sources | D |
Question: What layer is above the mesosphere?
Options:
A. thermosphere
B. ionosphere
C. exosphere
D. stratosphere | A |
Question: What is produced by leydig cells in the embryonic testis and stimulates the development of male sexual organs?
Options:
A. testosterone
B. insulin
C. androgen
D. estrogen | A |
Question: What is a continuous flow of electric charges called?
Options:
A. electric current
B. circuit
C. electricity
D. magnetic current | A |
Question: What causes high winds and monsoon storms in the desert?
Options:
A. low winter temperature
B. high summer temperature
C. and-12 summer temperature
D. moderate spring temperature | B |
Question: What are the three most common protective devices?
Options:
A. fuses , fabrication breaks & surge protectors
B. fuses, circuit breaks & surge protectors
C. fuses , circuit breaks & surge claws
D. tranistors, resistors & diodes | B |
Question: Which veins return oxygen-rich blood from the lungs to the heart?
Options:
A. varicose
B. respiratory
C. pulmonary
D. jugular | C |
Question: Makemake and pluto are classified as what type of celestial object?
Options:
A. dwarf planets
B. gas giants
C. black holes
D. nebula | A |
Question: What do you call the entire range of wavelengths of electromagnetic waves?
Options:
A. molecular spectrum
B. electromagnetic spectrum
C. electric spectrum
D. gaseous spectrum | B |
Question: Joules and calories are the units of what?
Options:
A. weight and energy
B. heat and velocity
C. energy and heat
D. mass and potential | C |
Question: The brain and spinal cord are part of what system?
Options:
A. immune system
B. central nervous system
C. digestive system
D. cardiovascular system | B |
Question: The two parathyroid glands are located behind what gland?
Options:
A. thyroid
B. thymus
C. hypothalmus
D. pituitary gland | A |
Question: Fission is a method of what type of reproduction exhibited by some planarians?
Options:
A. propagation
B. sexual
C. spawning
D. asexual | D |
Question: The best method for preparing pure phosphorous acid is by hydrolyzing what?
Options:
A. dioxide trichloride
B. phosphorus trichloride
C. dioxide phosphat
D. carbon trichloride | B |
Question: What bonds result from the overlap of atomic orbitals?
Options:
A. metallic
B. covalents
C. hydrogen
D. valent | B |
Question: What is a cluster of neuron cell bodies in the pns called?
Options:
A. gangnem
B. groupilion
C. crystals
D. ganglion | D |
Question: Unlike the passive form, the sodium-potassium pump uses what type of transport?
Options:
A. active
B. phase
C. Low
D. High | A |
Question: On insects, what are the openings on the sides of the abdomen that allows respiration to occur?
Options:
A. wings
B. chloroplasts
C. gills
D. spiracles | D |
Question: Salts of weak acids or bases can affect the acidity or what of their aqueous solution?
Options:
A. basicity
B. compound
C. atomicity
D. ductility | A |
Question: Flowers, double fertilization, and fruits are unique features of what life cycle?
Options:
A. protozoa
B. early lifehood
C. angiosperm
D. dinoflagellate | C |
Question: What is most often the cause of encephalitis?
Options:
A. viruses
B. calcium buildup
C. bacterial infections
D. parasites | A |
Question: Why do microwaves have a higher energy than radio waves?
Options:
A. higher decibel
B. higher resonance
C. higher frequency
D. lower frequency | C |
Question: What is cytology.
Options:
A. the study of cancers
B. the study of cell structure
C. the study of plants
D. the study of atomic structure | B |
Question: When solids change to gasses, they generally pass through what other state?
Options:
A. carbon
B. chemical
C. liquid
D. frozen | C |
Question: What is the structure which hangs from a newly hatched salmon larva?
Options:
A. yolk sac
B. liquid sac
C. stomach sac
D. air sac | A |
Question: What is made up of the pinna, ear canal, and eardrum?
Options:
A. the outer ear
B. the inner ear
C. the nervous system
D. the epidermis | A |
Question: What type of solvents is glucose insoluble in?
Options:
A. acidic
B. alkaline
C. polar
D. nonpolar | D |
Question: What organ is divided into the duodenum, the jejunum, and the ileum?
Options:
A. large intestine
B. small intestine
C. lung
D. kidney | B |
Question: Ectotherms undergo a variety of changes at the cellular level to acclimatize to shifts in what?
Options:
A. oxygen
B. temperature
C. air pressure
D. precipitation | B |
Question: A comet striking the earth may have caused mass extinction, this would have decreased sunlight, which would have effected what plant process reducing food?
Options:
A. glycolysis
B. fertilization
C. photosynthesis
D. decomposition | C |
Question: Normal body temperature is ideal for most of what type of reactions?
Options:
A. theoretical
B. plasma
C. gas
D. biochemical | D |
Question: What separates and strongly unites bodies of adjacent vertebrae?
Options:
A. interstitial fluid
B. intervertebral disc
C. collagen fibers
D. synovial fluid | B |
Question: About 20 percent of carbon dioxide is bound by hemoglobin and is transported where?
Options:
A. intestines
B. lungs
C. bones
D. brain tissues | B |
Question: Which outermost secondary xylem layers transport water?
Options:
A. the farthest
B. the youngest
C. the narrowest
D. the oldest | B |
Question: What did volcanic gases help to form on earth?
Options:
A. plants
B. rocks
C. water
D. atmosphere | D |
Question: What is formed when the ceiling of an underground cave collapses?
Options:
A. sinkhole
B. groundwater
C. hill
D. mountain | A |
Question: What type of muscle makes up most of the heart?
Options:
A. cardiac muscle
B. chest muscles
C. respiratory muscle
D. heart muscle | A |
Question: What measures the amount of water in the air?
Options:
A. temperature
B. humidity
C. fire index
D. cloud cover | B |
Question: Most terrestrial vertebrates have what type of lungs?
Options:
A. extra
B. external
C. internal
D. mechanical | C |
Question: What process joins two haploid gametes into a diploid zygote?
Options:
A. embryo
B. migration
C. fusion
D. fertilization | D |
Question: Planets are held by the force of gravity in elliptical orbits around what?
Options:
A. mars
B. sun
C. jupitor
D. earth | B |
Question: What is the fastest land animal?
Options:
A. cheetah
B. greyhound
C. rhino
D. ostrich | A |
Question: What is the process by which the remains of living things become fossils?
Options:
A. sublimation
B. fossilization
C. petrification
D. decomposition | B |
Question: Meters, such as those in analog fuel gauges on a car, are a common application of magnetic torque on a current-carrying what?
Options:
A. arc
B. loop
C. circuit
D. dial | B |
Question: What causes reduction of elasticity in all organs?
Options:
A. weight gain
B. age
C. radiation
D. low vitamin D | B |
Question: How many protons and electrons each do carbon atoms have?
Options:
A. five
B. two
C. nine
D. six | D |
Question: What thickens the cortex around the inner edge of a cell?
Options:
A. vacuoles
B. microfilaments
C. mitochondria
D. plasma membrane | B |
Question: What value of dissolved substances is higher than that of their corresponding precipitate?
Options:
A. entropy
B. ordiny
C. binary
D. negentropy | A |
Question: Is an acid lower or higher than 7 on the ph scale?
Options:
A. exactly 7
B. lower than 7
C. twice as much as 7
D. higher than 7 | B |
Question: Although what biochemicals circulate throughout the body and come into contact with many different cell types, they only affect cells that possess the necessary receptors?
Options:
A. Cells
B. enzymes
C. organs
D. hormones | D |
Question: The right atrium receives all of the systemic venous return. most of the blood flows into either the superior vena cava or this?
Options:
A. identical vena cava
B. resulted vena cava
C. exterior vena cava
D. inferior vena cava | D |
Question: Tissue is made up of layers of tightly packed cells that line the surfaces of the body, such as skin.
Options:
A. neural tissue
B. epithelial tissue
C. weak tissue
D. resultant tissue | B |
Question: Most lipid hormones are derived from what?
Options:
A. fat
B. cholesterol
C. tissue
D. protein | B |
Question: A fact or question is only considered science if it has what property?
Options:
A. it is interesting
B. it is believable
C. it is mineral
D. it is testable | D |
Question: Which branch of science is the study of energy, matter, and their interactions?
Options:
A. biology
B. physics
C. geology
D. meteorology | B |
Question: What is the smallest unit capable of life known as?
Options:
A. organism
B. a cell
C. living thing
D. insect | B |
Question: Making associations between experiences is often a part of what activity?
Options:
A. eating
B. learning
C. sleeping
D. dying | B |
Question: The spectrum is made up of discrete lines representing transitions of the hydrogen electron between specific energy levels within what?
Options:
A. the molecule
B. an element
C. the atom
D. a rainbow | C |
Question: In the field of biodiversity, "richness" and "abundance" are used to describe different what?
Options:
A. nutrients
B. densities
C. water sources
D. species | D |
Question: Nitrogen is an important macronutrient because it is part of nucleic acids and proteins. atmospheric nitrogen, which is the diatomic molecule n2, or dinitrogen, is the largest pool of nitrogen in these?
Options:
A. desert biomes
B. gas planets
C. terrestrial ecosystems
D. aquatic ecosytems | C |
Question: What is the term for rotation of a bone toward the midline of the body?
Options:
A. medial rotation
B. lateral rotation
C. interior rotation
D. visual rotation | A |
Question: What cause rabies, measles, diarrheal diseases, hepatitis, polio, and cold sores?
Options:
A. viruses
B. bacteria
C. parasites
D. contaminants | A |
Question: What are the two methods in which mutations arise in dna?
Options:
A. accelerated or random
B. accelerated or spontaneous
C. produced or spontaneous
D. induced or spontaneous | D |
Question: Water follows where sodium ions lead, due to what process?
Options:
A. electrolysis
B. hydration
C. osmosis
D. absorption | C |
Question: What group of simple organisms recycles nutrients and has been on earth since long before multicellular life appeared?
Options:
A. protists
B. bacteria
C. prokaryotes
D. eukaryotes | C |
Question: What is the term for dry climate regions at higher altitudes that have short grasses and low bushes?
Options:
A. steppes
B. fringes
C. deserts
D. prairie | A |
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