question stringlengths 68 502 | answer stringclasses 4
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Question: Which theorem states that, if a population meets certain conditions, it will be in equilibrium?
Options:
A. hardy - zeiss theorem
B. hardy- jacksons theorem
C. hardy-weinberg theorem
D. hardy - henkel theorem | C |
Question: What is greatest source of hazardous waste?
Options:
A. industry
B. water
C. heat
D. study | A |
Question: A circuit that consists of two loops is called a what?
Options:
A. complex circuit
B. unnatural circuit
C. diverse circuit
D. parallel circuit | D |
Question: Hyenas and cockroaches are examples of what decomposers that consume the soft tissues of dead animals?
Options:
A. scavengers
B. predators
C. foragers
D. parasites | A |
Question: What helps to convert some molecules to forms that can be taken up by other organisms?
Options:
A. prokaryotes
B. protists
C. eukaryotes
D. scavangers | A |
Question: As hydrostatic pressure in the kidneys increases, what happens to the amount of water leaving the capillares?
Options:
A. it increases
B. it evaporates
C. it stays the same
D. it decreases | A |
Question: What is the percentage of production transferred from one trophic level to the next
Options:
A. robust efficiency
B. hypothesized efficiency
C. trophic efficiency
D. underlie efficiency | C |
Question: What is the metal part of the compound named as?
Options:
A. the base
B. the source
C. the basic
D. the element | D |
Question: How do plants and algae both make food?
Options:
A. spermatogenesis
B. Digestion.
C. atherosclerosis
D. photosynthesis | D |
Question: All dinosaurs (except those which led to birds) went extinct at the end of which period?
Options:
A. Paleogene
B. Jurassic
C. cretaceous
D. Tertiary | C |
Question: What is destroying the layer of good ozone?
Options:
A. greenhouse gas
B. water pollution
C. climate change
D. air pollution | D |
Question: In which state does matter need to be for nuclear fusion?
Options:
A. solid state
B. plasma state
C. cells state
D. gaseous state | B |
Question: Just as salty taste involves perception of sodium ions in saliva, what taste correlates with presence of glucose?
Options:
A. sour
B. salty
C. bitter
D. sweet | D |
Question: How is eye color in humans determined?
Options:
A. multiple genes
B. random chance
C. temperature of the womb
D. by the father | A |
Question: What term is given to flatworms because they lack a body cavity?
Options:
A. sporozoans
B. sporazoa
C. pores
D. acoelomates | D |
Question: Some soil water can flow through easily. what kind of soil is this?
Options:
A. dense
B. permeable
C. porous
D. Stationary | B |
Question: What is contained in the cavity of a long bone's central shaft?
Options:
A. blood
B. cells
C. marrow
D. calcium | C |
Question: Bacterial contamination of foods can lead to digestive problems called what?
Options:
A. butterflies in your stomach
B. cancer
C. food poisoning
D. the flu | C |
Question: What can be looked at to see a record of how horses evolved?
Options:
A. pattern records
B. fossil records
C. erosion records
D. carbon dating | B |
Question: What natural destructive element cuts away at rock forming river valleys?
Options:
A. lava
B. water
C. sediment
D. air | B |
Question: What do we call an interruption in the normal conduction pathway of the heart?
Options:
A. infarction
B. heartburn
C. heart block
D. heart attack | C |
Question: Mixtures that have the same composition throughout are known as what kinds of mixtures?
Options:
A. homogeneous
B. heterogeneous
C. zygomatic
D. contiguous | A |
Question: The wavelength of a what type of wave can be measured as the distance between two adjacent compressions?
Options:
A. longitudinal
B. horizontal
C. vertical
D. lateral | A |
Question: What kind of muscle is found in the heart?
Options:
A. cord
B. cardiac
C. pulminary
D. respiratory | B |
Question: Streamlines are smooth and continuous when flow is laminar, but break up and mix when flow is what?
Options:
A. atmospheric
B. turbulent
C. slow
D. volcanic | B |
Question: What does water treatment do to water?
Options:
A. adds flavor
B. increases volume
C. removes unwanted substances
D. restores bacteria | C |
Question: What is named after the type of enzyme they interact with in the cell?
Options:
A. nitrogen proteins
B. oxygen proteins
C. receptor proteins
D. function proteins | C |
Question: What types of genes encode transcription factors?
Options:
A. glycosyl transferases
B. homeobox genes
C. rohail genes
D. isozyme genes | B |
Question: What factor largely determines the distinguishing features of terrestrial biomes?
Options:
A. density
B. climate
C. migration
D. sea level | B |
Question: What is the term for vascular plants that reproduce with seeds?
Options:
A. Reproductive Plants
B. mother plants
C. seed plants
D. strain plants | C |
Question: What is thought to be the oldest eukaryotes?
Options:
A. arthropods
B. protists
C. amoebas
D. prokaryotes | B |
Question: Which landmark book on evolution via natural selection did charles darwin publish in 1859?
Options:
A. on the origin of species
B. on the origin of mammals
C. on various kinds of animals
D. on the ethnic of species | A |
Question: Archaeans help break down sewage in waste treatment plants, so they fulfill what important role?
Options:
A. pollenation
B. decomposer
C. producers
D. consumers | B |
Question: If an atom gains electrons, it becomes what?
Options:
A. a cation
B. anion
C. an ion
D. neutral | C |
Question: The formula mass of a covalent compound is also called the what?
Options:
A. ionic mass
B. molecular mass
C. atomic mass
D. nucleus mass | B |
Question: Both pathways that isolate a population reproductively in some form, allopatric and sympatric describe what, which means the creation of new species?
Options:
A. accumulation
B. speciation
C. extinction
D. bacterial | B |
Question: Common disease of what system include asthma, pneumonia, and emphysema?
Options:
A. the fecal system
B. the glandular system
C. the digestive system
D. the respiratory system | D |
Question: Translucent matter is matter that transmits and does what else to light?
Options:
A. absorbs
B. scatters
C. reflects
D. condenses | B |
Question: Diet correlates with the length of what organ system in vertebrates?
Options:
A. reproductive
B. circulatory
C. respiratory
D. digestive | D |
Question: What is the process of processing used material into new ones called?
Options:
A. remake
B. recycling
C. renew
D. reuse | B |
Question: What equals the mass of the object (in kilograms) times the acceleration due to gravity (9.8 m/s 2 )?
Options:
A. speed of light
B. velocity
C. weight
D. density | C |
Question: Where does visible light fall in between on the electromagnetic spectrum?
Options:
A. infrared light and specific light
B. radio and infrared
C. infrared light and gamma ray
D. infrared light and ultraviolet light | D |
Question: Having polar bonds may make a covalent compound what?
Options:
A. neutral
B. negatively charged
C. ionic
D. polar | D |
Question: Shortening of muscle fibers is called what?`
Options:
A. diffusion
B. diffusion
C. shrinking
D. contraction | D |
Question: About how many thunderstorms are there each year worldwide?
Options:
A. 21 million
B. 14 million
C. 23 million
D. 17 million | B |
Question: What are a group of protists whose monophyly is well supported by molecular systematics?
Options:
A. euglenozoa
B. alveolates
C. mycetozoa
D. sporozoans | B |
Question: What is measured by the intensity of the sound waves?
Options:
A. loudness
B. inputs
C. tone
D. pitch | A |
Question: Parasitic fungi often cause illness and may eventually do what to their hosts?
Options:
A. reproduce with them
B. kill them
C. mutate them
D. become them | B |
Question: Coronary heart disease is caused when what blocks coronary arteries?
Options:
A. proteins
B. plaque
C. carbohydrates
D. fats | B |
Question: Air is an example of what state of matter?
Options:
A. solid
B. plasma
C. liquid
D. gas | D |
Question: What descend from clouds in funnel-like shapes that spin violently, producing powerful winds?
Options:
A. currents
B. hurricanes
C. tornadoes
D. rains | C |
Question: What term describes the long-term, predictable atmospheric conditions of a specific area?
Options:
A. climate
B. hemosphere
C. wind patterns
D. solar activity | A |
Question: Between meals, when the level of blood glucose drops below a certain point, a signal is sent to what organ saying “make more glucose"?
Options:
A. kidney
B. liver
C. brain
D. pancreas | B |
Question: Where does the krebs cycle take place?
Options:
A. in the beam
B. in the ozone
C. in the nitrogen
D. in the matrix | D |
Question: What state of matter is like a liquid in that particles are in contact with each other, but unlike liquids in that the intermolecular forces are strong enough to hold the particles in place?
Options:
A. gases
B. fluids
C. plasmas
D. solids | D |
Question: What is the term for a natural situation which arises to physically divide organisms?
Options:
A. vicariance
B. extinction
C. assimilation
D. reproduction | A |
Question: Digestion of carbohydrates is performed by several enzymes. starch and glycogen are broken down into glucose by amylase and maltase. sucrose (table sugar) and lactose (milk sugar) are broken down by sucrase and this?
Options:
A. hydrolase
B. pepsin
C. lactase
D. lipase | C |
Question: What is defined as a phasic change in muscle tone?
Options:
A. gastrointestinal
B. spasticity
C. elasticity
D. susceptibility | B |
Question: What is a force that opposes motion between any surfaces that are touching?
Options:
A. gravity
B. friction
C. vibration
D. tension | B |
Question: What are structures that have a common function and suggest common ancestry?
Options:
A. reversible structures
B. analogous structures
C. monogamous structures
D. homologous structures | D |
Question: Which type of cell division halves the number of chromosomes?
Options:
A. mitosis
B. meiosis
C. fragmentation
D. budding | B |
Question: Objects in motion that return to the same position after a fixed period of time are said to be in what?
Options:
A. kinetic motion
B. resonant motion
C. homeostasis
D. harmonic motion | D |
Question: What is the relationship of multiple action potentials from a single cell resulting in a significant change in the membrane potential?
Options:
A. bipolar summation
B. distinct summation
C. temporal summation
D. nature summation | C |
Question: Plant cells have cell walls that are made of what?
Options:
A. carbonate
B. tissue
C. cellulose
D. nucleus | C |
Question: What disease associated with smoking involves breakdown of walls of the alveoli, resulting in less gas exchange by the lungs?
Options:
A. pneumonia
B. leukemia
C. emphysema
D. cancer | C |
Question: Molds and yeasts are organisms in what kingdom?
Options:
A. fungus
B. insects
C. aquatic
D. tissues | A |
Question: Bacteria can be used to make cheese from milk. the bacteria turn the milk sugars into what?
Options:
A. hydrochloric acid
B. ionic acid
C. lactic acid
D. acetic acid | C |
Question: Independent assortment occurs when what go to opposite poles of the cell in anaphase i?
Options:
A. chromosomes
B. ballasts
C. receptors
D. prokaryotes | A |
Question: What term is used to describe an immunity that occurs after exposure to an antigen either from a pathogen or a vaccination?
Options:
A. herd immunity
B. variation immunity
C. autoimmunity
D. adaptive immunity | D |
Question: Changes in temperature, ph, and exposure to chemicals may lead to permanent changes in the shape of a protein, leading to loss of function known as what?
Options:
A. fermentation
B. digestion
C. denaturation
D. bioturbation | C |
Question: What term is used to describe phages capable of using both modes of replicating within a bacterium?
Options:
A. temperate phages
B. bacteriophage
C. moderate phages
D. lambda phage | A |
Question: Many observatories are built on high mountains to avoid interference from what?
Options:
A. airplanes
B. the atmosphere
C. animal life
D. artificial light | B |
Question: Like earth, the moon has a distinct crust, mantle, and what else?
Options:
A. core
B. temperature
C. atmosphere
D. polarity | A |
Question: Reflection, refraction, and diffraction are examples of what type of interaction?
Options:
A. Currents
B. Oscillations
C. waves
D. winds | C |
Question: What type of molecules are found in the hydration shell of a dissolved ion?
Options:
A. water
B. iron
C. carbon
D. oxygen | A |
Question: Tuataras, lizards, and snakes are members of what subclass of reptiles?
Options:
A. arthropods
B. lepidosaurs
C. staurikosaurus
D. dinosaurs | B |
Question: What do waves deposit in relatively quiet areas along a shore?
Options:
A. fish
B. snow
C. mud
D. sand | D |
Question: What is the smallest unit of structure and function of all living organisms?
Options:
A. proton
B. cell
C. atom
D. particle | B |
Question: What kind of fertilization do birds have?
Options:
A. sensitive fertilization
B. deep fertilization
C. asexual
D. internal fertilization | D |
Question: What is the term for an organism, or single living thing?
Options:
A. unique
B. single-celled organism
C. loner
D. individual | D |
Question: Which of newton's laws states that the quantity of angular momentum in a closed system is fixed?
Options:
A. second conservation law
B. sixth conservation law
C. fourth conservation law
D. third conservation law | D |
Question: What is the force that slows down or stops motion?
Options:
A. thrust
B. friction
C. tension
D. resistance | B |
Question: What is it called when poles are in opposite positions?
Options:
A. reversed bonding
B. polar effect
C. demagnetization
D. reversed polarity | D |
Question: What is a feature that prokaryotes lack?
Options:
A. epidermis
B. cell wall
C. nucleus
D. plasma | C |
Question: They had demonstrated that particles smaller than bacteria cause what?
Options:
A. flight
B. damage
C. disease
D. blood | C |
Question: The wrist and base of the hand are formed by what series of small bones arranged in distal and proximal rows?
Options:
A. cranial
B. carpal
C. patella
D. ribs | B |
Question: What does an underwater spider use to breathe and keep alive?
Options:
A. gills
B. shiny air bubble
C. forehead air bubble
D. metallic air bubble | B |
Question: Amphibians are ectothermic vertebrates that divide their time between freshwater and what else?
Options:
A. deserts
B. arboreal habitats
C. terrestrial habitats
D. saltwater | C |
Question: Water plus other substances makes what?
Options:
A. oil
B. element
C. mixture
D. solution | D |
Question: What type of polarization does a negative object create>
Options:
A. negative polarization
B. common polarization
C. opposite polarization
D. simple polarization | C |
Question: What type of particles can a beta particle be?
Options:
A. diode or positron
B. anode or positron
C. cytoplasm or positron
D. electron or positron | D |
Question: The heme parts of a hemoglobin molecule bind with what element?
Options:
A. oxygen
B. hydrogen
C. nitrogen
D. carbon | A |
Question: What is the term for flowering seed plants?
Options:
A. gymnosperms
B. angiosperms
C. perennials
D. spores | B |
Question: Do nonvascular or vascular plants have a dominant sporophyte generation?
Options:
A. nonvascular
B. vascular
C. perennial
D. deciduous | B |
Question: In mismatch repair, other enzymes remove and replace incorrectly paired nucleotides that have resulted from what?
Options:
A. typing errors
B. evolution errors
C. interaction errors
D. replication errors | D |
Question: What two structures are found on mars?
Options:
A. Trees and Canyons
B. volcanoes and canyons
C. Mountains and Creeks
D. geysers and canyons | B |
Question: What substances dissociate into ions when dissolved in water?
Options:
A. magnetic
B. ionic
C. isotopes
D. solvent | B |
Question: Organisms that depend on other organisms for food play what role in the food chain?
Options:
A. producer
B. plant
C. fungus
D. consumer | D |
Question: What is the growing root tip protected by?
Options:
A. tip cap
B. root cap
C. root flap
D. root hinge | B |
Question: Ocean water appears cyan because microbes in the water preferentially absorb what color of light?
Options:
A. blue
B. green
C. yellow
D. red | D |
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