question stringlengths 68 502 | answer stringclasses 4
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Question: Like other amphibians, frogs generally lay their eggs in moist environments, which are required since the eggs lack what feature?
Options:
A. tubes
B. membrane
C. nucleus
D. shells | D |
Question: What is the ratio of a wave frequency to its vibration frequency?
Options:
A. same
B. three
C. one
D. two | A |
Question: What is the hollow and muscular balloon-shaped organ that collects urine?
Options:
A. kidney
B. urinary bladder
C. prostate
D. urethra | B |
Question: Sugars, starches, and cellulose are examples of what biochemical compounds that organisms use for energy?
Options:
A. proteins
B. carbohydrates
C. prokaryotes
D. calories | B |
Question: During the embryonic stage of vertebrates, the notochord develops into what?
Options:
A. backbone
B. brain stem
C. rib cage
D. umbilical cord | A |
Question: What category of joints is immovable?
Options:
A. synarthrosis
B. amphiarthroses
C. diarthroses
D. sporozoans | A |
Question: What do male cones in seed plants contain?
Options:
A. nutrients
B. spores
C. pollen
D. nitrogen | C |
Question: What kind of harm does a corrosive substance cause?
Options:
A. Rust objects
B. eats through objects
C. Attracts dust
D. Builds a crust | B |
Question: Receptors for what chemical messengers recognize molecules with specific shapes and side groups, and respond only to those that are recognized?
Options:
A. enzymes
B. hormones
C. chromosomes
D. acids | B |
Question: A hydraulic jack that makes it possible to lift a car easily is an example of what, meaning it produces mechanical advantages?
Options:
A. simple weapon
B. simple machine
C. complex machines
D. quantum physics | B |
Question: What process consists of the mechanisms that produce an observed pattern of change?
Options:
A. cycle
B. repetition
C. evolution
D. variation | C |
Question: Prokaryotic cells have a cell wall located outside of the __________?
Options:
A. chromosomes
B. epidermis
C. chloroplasts
D. plasma membrane | D |
Question: Multiplying the linear momentum of a spinning object by the radius calculates what?
Options:
A. total momentum
B. angular momentum
C. applied momentum
D. angular torque | B |
Question: What are responsible for removing excess h+ ions from the blood?
Options:
A. liver nodes
B. kidneys
C. stomach chambers
D. intestinal walls | B |
Question: What makes up the dense outer layer of bones?
Options:
A. marrow
B. scales
C. compact bone
D. cartilage | C |
Question: What refers to a substance made from two or more elements joined by chemical bonds?
Options:
A. contrast
B. basic
C. compound
D. component | C |
Question: Stress building up at the same rate over time at a fault causes what phenomenon?
Options:
A. volcanoes
B. erosion
C. storms
D. earthquakes | D |
Question: Materials made from non-living substances like pebbles and sand are called what?
Options:
A. inorganic
B. microscopic
C. fibrous
D. organic | A |
Question: What type of gas levels in the atmosphere are increasing?
Options:
A. helium gas
B. hydrogen gas
C. greenhouse gas
D. carbonate gas | C |
Question: What is the earths crust composed of?
Options:
A. metamorphic rock
B. igneuos rock
C. bicellular rock
D. sedimentary rock | B |
Question: Cells that are divided by oncogenes contain damaged what?
Options:
A. bacteria
B. cells
C. atoms
D. dna | D |
Question: When does exchange of dna segments happen between non-sister chromatids of homologous chromosomes?
Options:
A. during mitosis
B. during crossing-over
C. during meiosis
D. during diversion | B |
Question: What are observable patterns of stars found in the night sky called?
Options:
A. latitudes
B. deformations
C. deviations
D. constellations | D |
Question: If you were to filter out all the cells in blood, you would be left with what golden-yellow liquid?
Options:
A. pus
B. plasma
C. hemoglobin
D. platelets | B |
Question: The simplest organic compounds have hydrogen and what else?
Options:
A. oxygen
B. sodium
C. carbon
D. nitrogen | C |
Question: Temperature and what other environmental factor are important in the activity of an enzyme?
Options:
A. color
B. size
C. ph level
D. shape | C |
Question: What glands are wedges of glandular and neuroendocrine tissue adhering to the top of the kidneys by a fibrous capsule?
Options:
A. nutrients glands
B. fatty glands
C. heart glands
D. adrenal glands | D |
Question: What is the force that pulls downward on an object and is measured by weight?
Options:
A. light
B. gravity
C. work
D. strength | B |
Question: Which reproduction produces offspring genetically identical to the one parent?
Options:
A. sexual
B. asexual
C. bsexual
D. microscopic | B |
Question: Water in its solid state is commonly known as what?
Options:
A. carbon dioxide
B. glass
C. sea
D. ice | D |
Question: Besides the concentration of dissolve oxygen and nutrients in the water, what other factor limits aquatic organisms?
Options:
A. lake size
B. temperature
C. availability of sunlight
D. rainfall | C |
Question: Which type of membrane are ribosomes surrounded by?
Options:
A. temporary
B. none
C. permenant
D. partial | B |
Question: Which scientist was responsible for the theory of evolution by natural selection?
Options:
A. albert einstein
B. charles darwin
C. galileo Galilei
D. stephen hawking | B |
Question: Soft cartilage gradually turns into hard bone through what process?
Options:
A. oxidation
B. calcification
C. elongation
D. ossification | D |
Question: Glycerol is a triol, an alcohol which contains three what?
Options:
A. stark functional groups
B. hydroxl functional groups
C. cytoplasm functional groups
D. hydroxl acidic groups | B |
Question: The parts of the ears involved in balance are called what?
Options:
A. rectangular canals
B. semicircular canals
C. lobe canal
D. symmetrical canals | B |
Question: The sun’s heat can also be trapped in your home by using south facing windows and good what?
Options:
A. floors
B. curtains
C. vegetation
D. insulation | D |
Question: Red blood cells do not perform aerobic respiration, but they do perform what process that is nearly universal to organisms?
Options:
A. mitosis
B. glycolysis
C. reproduction
D. digestion | B |
Question: Late adulthood begins in the mid-60s and continues until?
Options:
A. adolescence
B. death
C. birth
D. youth | B |
Question: The concentration of a substance is the quantity of solute present in a given quantity of ___________?
Options:
A. solution
B. mixture
C. salutation
D. structure | A |
Question: What is the study of rock strata called?
Options:
A. chemistry
B. stratigraphy
C. biology
D. biochemistry | B |
Question: What is the particular sequence of amino acids in a longer chain called?
Options:
A. amino acid sequence
B. carbon sequence
C. molecular sequence
D. atomic sequence | A |
Question: Stones, infections, and diabetes threaten the health and functioning of what paired organs?
Options:
A. lungs
B. tissues
C. arteries
D. kidneys | D |
Question: What is the name of the outer layer of skin?
Options:
A. the epidermis
B. hypodermis
C. the dermis
D. endodermis | A |
Question: What is the major source of water vapor in the atmosphere?
Options:
A. ocean
B. streams
C. drift
D. sea | A |
Question: The release of mature eggs that occurs at the midpoint of each cycle is called?
Options:
A. ovulation
B. induction
C. semination
D. fertilization | A |
Question: What are the three ways to control the transcription of an operon?
Options:
A. repressive, activator, spontaneous
B. hormonal, repressive, activator,
C. transparent , activator , inducible
D. repressive, activator, inducible | D |
Question: Peroxisomes carry out oxidation reactions that break down what acids?
Options:
A. stomach acids
B. acetic acids
C. nitric acids
D. fatty acids and amino acids | D |
Question: The magnitude of the momentum vector is the product of what two properties?
Options:
A. work and speed
B. acceleration and speed
C. volume and speed
D. mass and speed | D |
Question: Hydrostatic skeletons are well suited for life in what kind of environments?
Options:
A. bacterial
B. surface
C. pelagic
D. aquatic | D |
Question: How do prokaryotic organisms reproduce asexually?
Options:
A. kinetic fission
B. residual fission
C. mitosis
D. binary fission | D |
Question: Many species use their body shape and coloration to avoid what?
Options:
A. human contact
B. exposure
C. detection by predators
D. sunlight | C |
Question: What property of ocean water increases rapidly as the water gets deeper?
Options:
A. salt content
B. visability
C. speed
D. pressure | D |
Question: Remember electrons are negatively charged, so ions with a positive charge have lost what?
Options:
A. neutron
B. atom
C. electron
D. proton | C |
Question: What type of starch is used for long-term energy storage in animal cells?
Options:
A. rigid
B. fructose
C. glycogen
D. enzyme | C |
Question: What contracts to move food throughout the gastrointestinal tract?
Options:
A. nerves
B. muscles
C. fluids
D. vessels | B |
Question: A magnet can exert force on objects without touching them, as long as they are within what?
Options:
A. gravitational field
B. audio field
C. magnetic field
D. molecular field | C |
Question: What field of science seeks to explain how traits are passed on from one generation to the next?
Options:
A. biochemistry
B. quantum physics
C. genetics
D. zoology | C |
Question: Saturated hydrocarbons get their name because they are saturated with what atoms?
Options:
A. nitrogen
B. helium
C. oxygen
D. hydrogen | D |
Question: What is the name of the black opening in the eye that lets light enter?
Options:
A. pupil
B. iris
C. inlet
D. cornea | A |
Question: Enzymes in saliva help bread down and digest what?
Options:
A. starches and water
B. fiber and minerals
C. water and fiber
D. starches and fats | D |
Question: What comes first in the life cycle of a plant?
Options:
A. garden
B. pair
C. seed
D. flower | C |
Question: Within the chloroplast, synthesis of what takes place in the fluid inside the inner membrane called the stroma?
Options:
A. sugar
B. fructose
C. wheat
D. glucose | A |
Question: When referring to genes, what term describes the property of having multiple phenotypic effects?
Options:
A. archetype
B. pleiotrophy
C. xerophyte
D. prototype | B |
Question: What are intervertebral discs made of?
Options:
A. fibrotissue
B. fibrocartilage
C. connective cartilage
D. intercartilage | B |
Question: What harmful light does ozone reduce in the upper atmospheres?
Options:
A. infrared light
B. visible light
C. ultraviolet light
D. specific light | C |
Question: What device detects and measuresee earthquake waves?
Options:
A. seismograph
B. stenograph
C. polygraph
D. sphygmomanometer | A |
Question: While some climate regions have multiple layers, arid regions are poor for development of what?
Options:
A. rain
B. minerals
C. soil
D. plants | C |
Question: Some plants open their leaves during the day to collect what?
Options:
A. energy
B. precipitation
C. moisture
D. sunlight | D |
Question: What secretion initiates chemical digestion while also protecting the oral cavity?
Options:
A. mucus
B. stomach acid
C. saliva
D. lymph | C |
Question: What makes echinoderms force water into the feet and move forward?
Options:
A. spring contractions
B. field contractions
C. muscle contractions
D. vacuum contractions | C |
Question: Red blood cells, white blood cells, and platelets are all produced where?
Options:
A. in yellow marrow
B. in synovial fluid
C. in collagen
D. in red marrow | D |
Question: Fine-grained mud in the deep ocean comes from silts and clays brought from the land by?
Options:
A. water
B. wind
C. waves
D. fire | B |
Question: Pseudopods are temporary extensions of what?
Options:
A. the cytoplasm
B. the mucus
C. cytopods
D. the cell wall | A |
Question: Ice cubes in cola cause the cola to lose what?
Options:
A. kinetic energy
B. gravity
C. mechanical energy
D. thermal energy | D |
Question: How are protists traditionally classified?
Options:
A. animal-like, plant-like, or fungi-like
B. organic and inorganic
C. carnivorous or herbivorous
D. sponges, fungi and bacteria | A |
Question: Coal is a solid hydrocarbon formed from what type of decaying material?
Options:
A. insects
B. soil
C. plant
D. mammals | C |
Question: Many disciplines within the study of biology contribute to understanding how past and present life evolved over time; these disciplines together contribute to building, updating, and maintaining this?
Options:
A. amount of life
B. root of life
C. tree of life
D. forests of life | C |
Question: A flow of one coulomb per second is called one ampere, which is a measure of what?
Options:
A. performance current
B. electric current
C. powered current
D. Direct current | B |
Question: What might eventually happen to a species if it is unable to reproduce?
Options:
A. adaptation
B. extinction
C. migration
D. natural selection | B |
Question: What do muscles need to contract?
Options:
A. stress
B. pressures
C. tendons
D. stimulus | D |
Question: What is considered to be a unique feature of echinoderms?
Options:
A. air vascular system
B. iron vascular system
C. oil vascular system
D. water vascular system | D |
Question: Noninfectious diseases can't be passed from one person to another. instead, these types of diseases are caused by factors such as environment, genetics and what?
Options:
A. lifestyle
B. weight
C. education
D. age | A |
Question: What 'counting' instrument is used to measure radioactivity?
Options:
A. geiger counter
B. ellie counter
C. Liquid Counter
D. pryor counter | A |
Question: Often primary producers, what term describes species considered the “base” or “bedrock” of a community, having the greatest influence on its overall structure?
Options:
A. foundation
B. consumable
C. primary
D. fundamental | A |
Question: Hurricanes that form in the tropics are called what?
Options:
A. caribbean cyclones
B. tornados
C. rain cyclones
D. tropical cyclones | D |
Question: What types of flat maps show users changes in land elevation?
Options:
A. surveyor maps
B. atlases
C. topographic maps
D. elliptical maps | C |
Question: Sister chromatids separate as part of anaphase in what process?
Options:
A. vesicles
B. angiogenesis
C. mitosis
D. osmosis | C |
Question: Vertebrates evolved from primitive forms of which creature?
Options:
A. humanoids
B. arthropods
C. chordates
D. cephalopods | C |
Question: Another name for table salt is?
Options:
A. carbon chloride
B. dioxide chloride
C. sodium chloride
D. hydrogen chloride | C |
Question: In iceland, the mid-atlantic ridge is above sea what?
Options:
A. tide
B. level
C. bottom
D. atmosphere | B |
Question: The earth's atmosphere, climate, and living things are effected by what feature that covers more than 70 percent of earth's surface?
Options:
A. mountains
B. continents
C. oceans
D. rivers | C |
Question: What is the nest of cell an egg rests in called?
Options:
A. pod
B. epidermis
C. follicle
D. mitochondria | C |
Question: The energy of a wave depends on time as well as what other property of the wave?
Options:
A. frequency
B. amplitude
C. force
D. power | B |
Question: Genetic equilibrium occurs when what process doesn't exist within the population?
Options:
A. movement
B. evolution
C. reproduction
D. variation | B |
Question: During meiosis, each parent synthesizes gametes that contain only half of their complement of what?
Options:
A. receptors
B. chromosomes
C. atoms
D. neutrons | B |
Question: What is evolution that occurs over a long period of time called?
Options:
A. macroevolution
B. spontaneous mutation
C. catabolism
D. introgression | A |
Question: What is the plasma membrane formed by?
Options:
A. single lipid layer
B. a cytoplasm bilayer
C. a phospholipid bilayer
D. cholesterol byproduct | C |
Question: What is formed when an element gains one or more electrons?
Options:
A. cation
B. anion
C. ion
D. neutron | B |
Question: What is the term for the slow wearing down of rocks on earth’s surface?
Options:
A. experiencing
B. evaporation
C. weathering
D. slipping | C |
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