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Question: The barrier defenses are not a response to infections, but they are continuously working to protect against a broad range of what?
Options:
A. pathogens
B. mates
C. nutrients
D. ecosystems | A |
Question: A minority of people on earth use up most of the planet's what, including energy?
Options:
A. water
B. sand
C. air
D. resources | D |
Question: Groundwater dissolves minerals and carries the ions in a what?
Options:
A. solution
B. mixture
C. transition
D. jet stream | A |
Question: What is the area of our universe that isn't stars and galaxies called?
Options:
A. dark matter
B. solar systems
C. nebula
D. galaxies | A |
Question: What neurotransmitter is associated with the fight-or-flight response?
Options:
A. stomach acid
B. endorphins
C. bile
D. adrenaline | D |
Question: What do scientists think are the oldest eukaryotes?
Options:
A. protists
B. arthropods
C. fungi
D. prokaryotes | A |
Question: Geologists found that the youngest rocks on the seafloor were where?
Options:
A. early - ocean ridges
B. seabed floor
C. mid - ocean ridges
D. late - ocean ridges | C |
Question: The stability of an ecosystem depends on the actions of what, exemplified by mushrooms on a decaying log and bacteria in soil?
Options:
A. decomposers
B. whitefly
C. fluxes
D. aphids | A |
Question: Anabolic steroids, a form of the male sex hormone testosterone, are one of the most widely known performance-enhancing drugs. steroids are used to help build what?
Options:
A. bone mass
B. nervous tissue
C. muscle mass
D. brain tissue | C |
Question: What is the only planet that is known to support life?
Options:
A. Venus
B. earth
C. Mars
D. Saturn | B |
Question: Where is food stored?
Options:
A. the stomach
B. The gall bladder
C. The esophagus
D. The liver | A |
Question: The vertebrae are divided into the cervical region, the thoracic region, and which other region?
Options:
A. lumbar region
B. pelvic region
C. central region
D. cylindrical region | A |
Question: What was used to measure the distance between the earth and the moon?
Options:
A. telescope
B. laser beam
C. ultrasound
D. yardstick | B |
Question: Upon entering the vestibular canal, the pressure waves push down on what duct?
Options:
A. the bile
B. the regrowth
C. the implant
D. the cochlear | D |
Question: Water is formed from oxygen and what other element?
Options:
A. calcium
B. lead
C. helium
D. hydrogen | D |
Question: What is the period from earth's origin to the beginning of the phanerozoic eon?
Options:
A. Cenozoic
B. anatolian
C. Paleolithic
D. precambrian | D |
Question: In a displacement graph, the slope of the line is the average what?
Options:
A. time
B. direction
C. velocity
D. speed | C |
Question: What is the process by which producers use the energy in sunlight to make food?
Options:
A. Leukemogenesis
B. glycolysis
C. photosynthesis
D. Embryogenesis | C |
Question: What is the term for something that limits the growth or development of an organism, population, or process?
Options:
A. variable
B. limiting factor
C. controlling factor
D. stumbling block | B |
Question: Where is glucose carried in the human body?
Options:
A. the liver
B. the brain
C. the blood
D. the heart | C |
Question: What are large glaciers that cover a larger area than just a valley?
Options:
A. ice caps
B. ice floes
C. glacial continents
D. icebergs | A |
Question: What type of reproduction do fungi engage in?
Options:
A. ephemeral
B. sexual
C. microscopic
D. asexual | D |
Question: What system transports minerals and water in a plant?
Options:
A. flowers
B. roots
C. stamen
D. leaves | B |
Question: What is the exchange of energy from one part of the universe to another called?
Options:
A. heat
B. temperature
C. humidity
D. cold | A |
Question: If environmental conditions deteriorate, many species can form protective what?
Options:
A. proteins
B. shells
C. cysts
D. fibers | C |
Question: In what subgroup are oligochaetes classified?
Options:
A. reptiles
B. mammals
C. polychaetes
D. insects | C |
Question: The crocodilia order, which includes crocodiles, alligators, caimans, and gharils, is part of what class of animals?
Options:
A. mammals
B. reptiles
C. aquatic
D. parasites | B |
Question: What fluid is most prevalent in your body?
Options:
A. water
B. liquid
C. Coolant
D. cold | A |
Question: What are negative electrons attracted to?
Options:
A. positive protons
B. hormones
C. neutral electrons
D. ions | A |
Question: The largest phylum in the animal kingdom, arthropod, is primarily comprised of what?
Options:
A. reptiles
B. insects
C. mammals
D. amphibians | B |
Question: Which country is formed by a hotspot along the mid-atlantic ridge?
Options:
A. norway
B. iceland
C. Switzerland
D. finland | B |
Question: What is an atom or group of bonded atoms that has a positive or negative charge?
Options:
A. an photon
B. an electron
C. an ion
D. a neutron | C |
Question: What type of reproduction produces offspring from a single parent that share the exact same genetic material as the parent?
Options:
A. sexual reproduction
B. mutation
C. asexual reproduction
D. microscopic reproduction | C |
Question: Invertebrates make up what percentage of all animal species?
Options:
A. 95 percent
B. 30 percent
C. 90 percent
D. 50 percent | A |
Question: What do monotremes lack though they have hair and produce milk?
Options:
A. tail
B. nipples
C. nerves
D. skin | B |
Question: What is muscle tissue that is attached to the bone called?
Options:
A. cartilage
B. skeletal tisse
C. ligament
D. epithelial tissue | B |
Question: What results from the evaporation of sea water?
Options:
A. salt
B. carbon-di-oxide
C. oxygen
D. reef | A |
Question: The human body regulates the use and storage of what simple sugar, a major cellular fuel?
Options:
A. insulin
B. carbohydrate
C. secretion
D. glucose | D |
Question: What planet did the voyager 1 spacecraft visit in 1980?
Options:
A. saturn
B. mars
C. venus
D. jupiter | A |
Question: What is the shortest phase of the sexual response cycle?
Options:
A. the orgasm
B. resolution phase
C. plateau phase
D. sexual stimulation | A |
Question: What is the name of the process by which plants use energy from sunlight to synthesize carbohydrates?
Options:
A. cellular respiration
B. osmosis
C. photosynthesis
D. pollination | C |
Question: Animals need plants for food and?
Options:
A. shelter
B. energy
C. fuel
D. reproduction | B |
Question: The product of a wave's wavelength and its frequency is what?
Options:
A. speed
B. trough
C. velocity
D. amplitude | A |
Question: How did lamarck believe species change over time?
Options:
A. ecological of acquired characteristics
B. inheritance of acquired characteristics
C. lose of acquired traits
D. became larger | B |
Question: Which is larger: the human sperm or the human egg?
Options:
A. human egg
B. zygote
C. same size
D. human sperm | A |
Question: What kind of reaction is a reaction in which two or more substances combine to form a single new substance?
Options:
A. combination reaction
B. chemical reaction
C. power reaction
D. compounding reaction | A |
Question: What is beyond the atmosphere?
Options:
A. space
B. air
C. object
D. vacuum | A |
Question: What structure does methane have?
Options:
A. two dimensional tetrahedra
B. two dimensional oxyhedra
C. three dimensional tetrahedra
D. three dimensional oxyhedra | C |
Question: What is the blastocyst called after implantation?
Options:
A. an nucleus
B. an embryo
C. trophoblast
D. an produce | B |
Question: What rate is generally higher for endotherms than for ectotherms?
Options:
A. respiration
B. mortality
C. metabolic
D. reproduction | C |
Question: What phylum includes snails, squids and clams?
Options:
A. porifera
B. cnidaria
C. protozoa
D. mollusca | D |
Question: What is the change in a species over time?
Options:
A. variation
B. transformation
C. phenomenon
D. evolution | D |
Question: What are the largest known proteins?
Options:
A. hormones
B. keratins
C. actins
D. titins | D |
Question: What term is used to describe the organism that is invaded and often harmed by a pathogen?
Options:
A. host
B. parent
C. guardian
D. initial | A |
Question: Untreated botulism is typically fatal because muscles required for breathing fail to contract when the release of what chemical is blocked?
Options:
A. hydrogen
B. monoxide
C. acetylcholine
D. carbon dioxide | C |
Question: The combined magnetic force of the magnetized wire coil and iron bar makes an electromagnet what?
Options:
A. very heavy
B. very strong
C. Very light
D. very reduced | B |
Question: Where do two or more bones of the skeleton meet?
Options:
A. muscle paths
B. valves
C. junctures
D. joints | D |
Question: Lacking a bony endoskeleton, sharks, rays, and ratfish belong to what group of fish?
Options:
A. invertebrates
B. cartilaginous
C. crustaceans
D. freshwater fish | B |
Question: What process involves the flow of heat from warmer objects to cooler objects?
Options:
A. convection
B. radiation
C. conduction
D. activation | C |
Question: What broad category of animals shows adaptations from water-dwelling to land-dweller, including the ability to breathe air and legs to move on land?
Options:
A. birds
B. herbivores
C. reptiles
D. amphibians | D |
Question: What term is used to describe the tendency of a mineral to break along certain planes?
Options:
A. erosion
B. cleavage
C. tooth decay
D. porosis | B |
Question: What controls earth's magnetosphere?
Options:
A. stratosphere
B. ionosphere
C. magnetic field
D. gravitational field | C |
Question: In humans, pharyngeal slits later develop into what?
Options:
A. inner ear
B. long ear
C. outer ear
D. middle ear | D |
Question: What phenomenon involves the forcing of a substance into a cell against its concentration gradient?
Options:
A. osmosis
B. active absorption
C. secondary transport
D. primary active transport | D |
Question: What are used as model organisms in molecular biology and genetics?
Options:
A. weather slime molds
B. electromagnetic slime molds
C. cellular slime molds
D. convergent slime molds | C |
Question: The bones of the newborn skull are not fully ossified and are separated by large areas called what?
Options:
A. fissures
B. sutures
C. pores
D. fontanelles | D |
Question: With logistic growth, how does population growth start out?
Options:
A. rapidly
B. steadily
C. slowly
D. exponentially | C |
Question: What determines the color of visible light?
Options:
A. exact wavelength
B. wavelength speed
C. molecular wavelength
D. wavelength density | A |
Question: What do eukaryotic cells have that compartmentalize their functions?
Options:
A. internal membranes
B. cytoplasm
C. vacuoles
D. cell walls | A |
Question: Earth rotates on its axis once each day and revolves around the sun how often?
Options:
A. once each year
B. ever 3 years
C. every other year
D. once each month | A |
Question: What are the two types of fatty acids?
Options:
A. saturated and endogenous
B. saturated and unsaturated
C. saturated and biodegradable
D. hydrochloric and carboxylic | B |
Question: Lipids are available to the body from how many sources?
Options:
A. one
B. three
C. two
D. five | B |
Question: What is a silver-colored alkaline earth metal that is even softer than calcium?
Options:
A. mercury
B. magnesium
C. lithium
D. strontium | D |
Question: Statoliths are starch-filled plastids that enable plant roots to detect what force?
Options:
A. current
B. impact
C. gravity
D. variation | C |
Question: How does lysozyme destroy bacteria?
Options:
A. by eating them
B. by antibiotic use
C. by paralyzing them
D. by digesting their cell walls | D |
Question: The primary role of leaves is to collect what?
Options:
A. precipitation
B. insects
C. sunlight
D. pollen | C |
Question: Temperature can be defined as the average of what type of energy of the molecules?
Options:
A. optical
B. potential
C. magnetic
D. kinetic | D |
Question: What lens shape corrects myopia?
Options:
A. flat
B. convex
C. concave
D. curve | C |
Question: What serves to replace nonreproducing specialized cells as needed in the adult body?
Options:
A. monocyte cells
B. osteoclast cells
C. dendritic cells
D. stem cells | D |
Question: In physics, resistance is opposition to the flow of what?
Options:
A. capacitance
B. surface flow
C. temperature charges
D. electrical charges | D |
Question: What organs are the main organs of the urinary system?
Options:
A. kidneys
B. prostate
C. gall bladder
D. spleen | A |
Question: What phase follows ovulation?
Options:
A. interstitial phase
B. luteal phase
C. telophase
D. varicose phase | B |
Question: What is used to measure blood pressure?
Options:
A. anemometer
B. spectrometer
C. sphygmomanometer
D. barometer | C |
Question: Are the lungs organs of the excretory system, the respiratory system, or both?
Options:
A. respiratory
B. excretory
C. both
D. neither | C |
Question: Light has the properties of both a wave and what else?
Options:
A. nucleus
B. atom
C. particle
D. electron | C |
Question: Hagfishes have a skull made of what?
Options:
A. gelatin
B. bone
C. cartilage
D. chitin | C |
Question: Water molds are commonly found in moist soil and where else?
Options:
A. standing water
B. crust water
C. methane water
D. surface water | D |
Question: What is considered to be a person's entire genetic information?
Options:
A. organism
B. biosphere
C. chromosome
D. genome | D |
Question: Where does cellular respiration occur?
Options:
A. mitochondria
B. nucleus
C. Golgi apparatus
D. chloroplasts | A |
Question: What are jellyfish and other cnidarian's stingers called?
Options:
A. necrocytes
B. nematocysts
C. phenocrysts
D. prokaryotes | B |
Question: What is tube-shaped and brings urine from the kidneys to the urinary bladder?
Options:
A. gametophytes
B. ureters
C. vas deferens
D. fallopian tube | B |
Question: When solvent molecules selectively pass through a membrane from a dilute solution to concentrated solution, what process is occurring?
Options:
A. plasmolysis
B. active transport
C. osmosis
D. diffusion | C |
Question: Water seeping into the ground is known as?
Options:
A. accumulation
B. precipitation
C. infiltration
D. invasion | C |
Question: What body system gets rid of waste?
Options:
A. nervous system
B. excretory system
C. Muscular system
D. digestive system | B |
Question: Through what form of energy transfer does the sun's energy travel?
Options:
A. Fusion
B. radiation
C. convection
D. solar burst | B |
Question: What are the only regions of space that electrons can occupy?
Options:
A. inside protons
B. orbits
C. galaxies
D. inside nuclei | B |
Question: What appears in autumn when cool air moves over a warm lake?
Options:
A. movement fog
B. feature fog
C. misty fog
D. steam fog | D |
Question: All cells need what for processes like active transport?
Options:
A. sunlight
B. hydrogen
C. oxygen
D. energy | D |
Question: In certain populations, some of the chromosomes have become what?
Options:
A. fused
B. composed
C. dissolved
D. elongated | A |
Question: What occurs as a result of the discharge of static electricity?
Options:
A. lightning
B. thunder
C. drought
D. clouds | A |
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