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null | Question: What "plumbing" structures inside the veins maintain a unidirectional flow of blood despite the low blood pressure?
Options:
A. valves
B. funnels
C. tubes
D. pumps
Answer: | A |
null | Question: From the pharynx, air next passes through what structure, also known as the voice box because it contains vocal cords?
Options:
A. larynx
B. diaphram
C. trachea
D. pancreas
Answer: | A |
null | Question: In eukaryotes, the major mechanism for shuffling genes is what?
Options:
A. subject reproduction
B. suggesting reproduction
C. asexual reproduction
D. sexual reproduction
Answer: | D |
null | Question: Why do comet tails always point away from the sun instead of trailing behind the comet?
Options:
A. dust particles liquify
B. dust particles recoil
C. dust particles evaporate
D. dust particles attract
Answer: | B |
null | Question: How many electrons does lithium have?
Options:
A. two
B. three
C. seven
D. four
Answer: | B |
null | Question: The spectrum is made up of discrete lines representing transitions of the hydrogen electron between specific energy levels within what?
Options:
A. an element
B. the molecule
C. a rainbow
D. the atom
Answer: | D |
null | Question: Some types of minerals form balls called what?
Options:
A. microbes
B. fistulas
C. cancers
D. nodules
Answer: | D |
null | Question: The reaction of an alkyl halide with an inorganic hydroxide base at elevated temperature produces what?
Options:
A. methane
B. blood
C. yeast
D. an alcohol
Answer: | D |
null | Question: Induced mutations are caused by environmental factors. what term is used to describe a mutation that has no environmental cause?
Options:
A. cancerous mutation
B. evident mutation
C. numerous mutation
D. spontaneous mutation
Answer: | D |
null | Question: In addition to insects, what large invertebrate phylum includes animals such as spiders, centipedes, and lobsters?
Options:
A. onychophora
B. ostracods
C. arthropoda
D. fungi
Answer: | C |
null | Question: Most plates are made up of a combination of what?
Options:
A. continental and oceanic lithosphere
B. oceanic and reflective lithosphere
C. continental and reflective lithosphere
D. continental and battered lithosphere
Answer: | A |
null | Question: What do we call the only light that people can see?
Options:
A. spectral light
B. visible light
C. natural light
D. wave light
Answer: | B |
null | Question: What are used to balance chemical equations?
Options:
A. isotopes
B. outputs
C. coefficients
D. densities
Answer: | C |
null | Question: Although helper t cells do not destroy infected or damaged body cells, they are still necessary for what?
Options:
A. mutations response
B. brain response
C. lung response
D. immune response
Answer: | D |
null | Question: When does diseases like alzheimer's become more common?
Options:
A. i-40 age
B. teenager
C. toddler
D. old age
Answer: | D |
null | Question: How many forces do objects on earth have acting on them at all times?
Options:
A. ten
B. four
C. three
D. two
Answer: | D |
null | Question: Fertilization occurs when an egg and sperm come together to form a what?
Options:
A. eukaryote
B. cell
C. zygote
D. infant
Answer: | C |
null | Question: In a pedigree what shape symbolizes males?
Options:
A. spheres
B. rectangles
C. triangles
D. squares
Answer: | D |
null | Question: Which term literally means 'spore in a vessel'?
Options:
A. Carboid
B. sporangia
C. cyanobacteria
D. germination
Answer: | B |
null | Question: This process of combining the wave functions for atomic orbitals is called what?
Options:
A. hydration
B. activation
C. hybridization
D. assimilation
Answer: | C |
null | Question: What is a large space that helps the organism digest & move nutrients around the cnidarian body?
Options:
A. gastrovascular cavity
B. vacuole
C. abdominal wall
D. thorax
Answer: | A |
null | Question: In what year was the hardy-weinberg theorem formulated?
Options:
A. 1908
B. 1938
C. 1928
D. 1901
Answer: | A |
null | Question: What are formed when primary pollutants interact with sunlight, air, or each other?
Options:
A. secondary pollutants
B. secondary contaminants
C. typical pollutants
D. cross pollutants
Answer: | A |
null | Question: What produces hormones that directly regulate body processes?
Options:
A. hippocampus
B. lymph glands
C. pancreas
D. hypothalamus
Answer: | D |
null | Question: How are heat changes in chemical reactions measured?
Options:
A. velocities
B. watts
C. joules
D. amperes
Answer: | C |
null | Question: What is the term for the measure of the average kinetic energy of the particles in matter?
Options:
A. voltage
B. precipitation
C. temperature
D. friction
Answer: | C |
null | Question: Where does most geologic activity take place?
Options:
A. inner core
B. plate boundaries
C. outer core
D. asthenosphere
Answer: | B |
null | Question: What two elements make up about 99 percent of the air?
Options:
A. helium and boron
B. nitrogen and phosphorus
C. nitrogen and oxygen
D. phosphorus and oxygen
Answer: | C |
null | Question: All species have evolved a pattern of living, called a life history strategy, in which they partition energy for growth, maintenance, and what?
Options:
A. variation
B. deatn
C. abundance
D. reproduction
Answer: | D |
null | Question: Fish and other aquatic organisms use gills to capture dissolved what?
Options:
A. nitrogen
B. sulfur
C. oxygen
D. food
Answer: | C |
null | Question: Oxidation does not necessarily require heating. which is the common and natural method of oxidation?
Options:
A. fermentation
B. ageing
C. rusting
D. boiling
Answer: | C |
null | Question: What do scientists use to help explain objects or systems in simpler ways?
Options:
A. models
B. theories
C. measurements
D. plants
Answer: | A |
null | Question: A reptile's what doesn't generate enough energy to keep their body temperature stable?
Options:
A. metabolism
B. tissue
C. skin
D. respiration
Answer: | A |
null | Question: What term is used to describe the average weather of a place over many years?
Options:
A. landscape
B. meteorology
C. atmosphere
D. climate
Answer: | D |
null | Question: What is the only metal that is liquid at room temperature?
Options:
A. water
B. gas
C. hydrogen
D. mercury
Answer: | D |
null | Question: What kind of reproduction results in offspring that are genetically unique?
Options:
A. asexual reproduction
B. fragmentation
C. sexual reproduction
D. budding
Answer: | C |
null | Question: What term is used to describe animals with three germ layers?
Options:
A. triploblasts
B. triplegerm
C. sporozoans
D. multilayer
Answer: | A |
null | Question: With the exception of water, what accounts for more mass than any other component of living organisms?
Options:
A. proteins
B. hormones
C. fats
D. nervous tissue
Answer: | A |
null | Question: Hydrogen sulfide is a noxious and toxic gas produced from decaying organic matter that contains what?
Options:
A. methane
B. helium
C. tin
D. sulfur
Answer: | D |
null | Question: Satellite and schwann cells are the two types of what kind of cell found in the pns?
Options:
A. epidermal
B. osteoclast
C. glial
D. dendritic
Answer: | C |
null | Question: What do you call catalysts that are found inside of living things?
Options:
A. fibres
B. proteins
C. hormones
D. enzymes
Answer: | D |
null | Question: What happens to a tectonic plate when it subducts?
Options:
A. it warms
B. it sinks
C. it cracks
D. it melts
Answer: | D |
null | Question: What protects you from pathogens and keeps you healthy?
Options:
A. potent system
B. immune system
C. health system
D. immunity system
Answer: | B |
null | Question: What is the alkaline hydrolysis reaction of an ester called?
Options:
A. saponification
B. fermentation
C. instantiation
D. resorption
Answer: | A |
null | Question: What is the vector sum of all the torques acting on the object called?
Options:
A. critical torque
B. net torque
C. gross torque
D. total torque
Answer: | B |
null | Question: What are the sites of protein synthesis or assembly?
Options:
A. plasma
B. ribosomes
C. chloroplasts
D. chromosomes
Answer: | B |
null | Question: What were the electrons initially called?
Options:
A. cathode rays
B. gamma rays
C. polymer rays
D. plasma rays
Answer: | A |
null | Question: What is a measure of how hot or cold the air is?
Options:
A. precipitation
B. relativity
C. temperature
D. variation
Answer: | C |
null | Question: When lactose is present in the cell, what allows the lac genes to be expressed?
Options:
A. binding of expressor protein
B. concentration of repressor protein
C. the addition of water
D. nonbinding of repressor protein
Answer: | D |
null | Question: What type of numbers specify the arrangement of electrons in orbitals?
Options:
A. quantum numbers
B. stream numbers
C. fusion numbers
D. ionic numbers
Answer: | A |
null | Question: What is created when the wave source moves faster than the wave propagation speed?
Options:
A. loop wake
B. superceding wake
C. bow wake
D. piece wake
Answer: | C |
null | Question: Organic acids such as acetic acid all contain a functional group called what?
Options:
A. protein
B. glycoprotein group
C. ester group
D. carboxyl group
Answer: | D |
null | Question: What is the position of rock layers and the relative ages called?
Options:
A. bifurcation
B. diffraction
C. superposition
D. metamorphism
Answer: | C |
null | Question: How do the vast majority of fish reproduce?
Options:
A. cloning
B. asexually
C. by budding
D. sexually
Answer: | D |
null | Question: Terrestrial biomes are classified by the climate and their what?
Options:
A. pollution
B. geography
C. habitat
D. biodiversity
Answer: | D |
null | Question: What is stored mainly in liver and muscle cells by humans and other vertebrates?
Options:
A. glucose
B. amylopectin
C. glycogen
D. protein
Answer: | C |
null | Question: What evolutionary concept emphasizes reproductive isolation?
Options:
A. chemical species concept
B. biological species concept
C. toxic species concept
D. reproductive method concept
Answer: | B |
null | Question: Spindle fibers pull what apart in anaphase i?
Options:
A. risk chromosomes
B. known chromosomes
C. linked chromosomes
D. True Chromosomes
Answer: | C |
null | Question: What diagram is used to reflect evolutionary relationships among organisms or groups of organisms?
Options:
A. relationships tree
B. conceptual tree
C. phylogenetic tree
D. biodiversity tree
Answer: | C |
null | Question: Two kinds of sex hormones are of particular importance in females: progesterone, which prepares the uterus for pregnancy and prevents the further release of eggs from the ovaries during pregnancy, and the estrogens, which are mainly responsible for the development of female secondary sexual characteristics, such as breast development and increased deposition of this?
Options:
A. bone
B. fat
C. muscle
D. blood
Answer: | B |
null | Question: What is the upper-most atmosphere known as?
Options:
A. xerosphere
B. ionosphere
C. exosphere
D. thermosphere
Answer: | D |
null | Question: The number of valence electrons determines variation of what property in nonmetals?
Options:
A. density
B. reactivity
C. turbidity
D. permeability
Answer: | B |
null | Question: Spores are generally produced through what type of reproduction?
Options:
A. hormone
B. sexual
C. similar
D. asexual
Answer: | B |
null | Question: Cells infected with viruses secrete what example of early induced proteins, which travel to adjacent cells and induce them to make antiviral proteins, a sacrifice that protects the surrounding cells?
Options:
A. interferons
B. metabolites
C. hormones
D. prokaryotes
Answer: | A |
null | Question: What do many scientists think are the oldest eukaryotes?
Options:
A. arthropods
B. plants
C. prokaryotes
D. protists
Answer: | D |
null | Question: Animals are heterotrophs, which means that they cannot make their own what?
Options:
A. habitat
B. food
C. fuel
D. energy
Answer: | B |
null | Question: Which system in the body exchanges gases with the outside air?
Options:
A. immune
B. vascular
C. respiratory
D. digestive
Answer: | C |
null | Question: What does the blue color of the pulmonary arteries reflect?
Options:
A. they are done
B. they are deoxygenated
C. they are lost
D. they are oxygenated
Answer: | B |
null | Question: Invertebrates make up what percentage of all animal species?
Options:
A. 90 percent
B. 95 percent
C. 30 percent
D. 50 percent
Answer: | B |
null | Question: What creatures evolved from a lobe-finned lungfish ancestor?
Options:
A. mice
B. birds
C. amphibians
D. horses
Answer: | C |
null | Question: What processes involve a transfer of electrons between the wire and the solution?
Options:
A. thermal
B. electrochemical
C. radioactive
D. magnetic
Answer: | B |
null | Question: What creates new seafloor in the rift valleys?
Options:
A. continental drift
B. crust spreading
C. sedimentation
D. seafloor spreading
Answer: | D |
null | Question: What are electromagnetic waves with the longest wavelengths called?
Options:
A. radio waves
B. channel waves
C. infrared waves
D. sound waves
Answer: | A |
null | Question: What is the testing for disease in a fetus or embryo?
Options:
A. prenatal screening
B. dynamic screening
C. complete screening
D. placental screening
Answer: | A |
null | Question: What is the cause of the “heartburn” that occurs when acidic digestive juices escape into the esophagus?
Options:
A. acid pressure
B. toxic reflux
C. acid reflux
D. acidic buildup
Answer: | C |
null | Question: Dinosaurs filled the niches that mammals fill today during which era?
Options:
A. Proterozoic
B. Phanerozoic
C. mesozoic
D. Cenozoic
Answer: | C |
null | Question: Which process changes rocks by heat and pressure?
Options:
A. sediments
B. weathering
C. metamorphism
D. Changes
Answer: | C |
null | Question: What do most living things use to make atp from glucose?
Options:
A. carbon
B. enzymes
C. nitrogen
D. oxygen
Answer: | D |
null | Question: What are mercury manometers often used to measure?
Options:
A. balance
B. blood pressure
C. brain waves
D. weight
Answer: | B |
null | Question: What type of reproduction produces offspring from a single parent that share the exact same genetic material as the parent?
Options:
A. microscopic reproduction
B. mutation
C. asexual reproduction
D. sexual reproduction
Answer: | C |
null | Question: For many decades, scientists have known that atoms consist of electrons and other particles called protons and?
Options:
A. waves
B. rods
C. nanoparticles
D. neutrons
Answer: | D |
null | Question: What process refers to the changes that occur in populations of living organisms over time?
Options:
A. adaptation
B. evolution
C. variation
D. spontaneous mutation
Answer: | B |
null | Question: Mechanical waves can only trave through what?
Options:
A. matter
B. water
C. air
D. light
Answer: | A |
null | Question: What are the cliffs called which are created when waves erode a rocky shoreline, leaving a vertical wall of exposed rock layers?
Options:
A. shear face
B. wave - theory
C. widow-makers
D. wave-cut
Answer: | D |
null | Question: What are polymers composed of many sugar building blocks called?
Options:
A. hydrocarbons
B. monomers
C. polysaccharides
D. monosaccarides
Answer: | C |
null | Question: What is the name of the chart that makes it easy to find the possible genotypes in offspring of two parents?
Options:
A. Isotropic Square
B. brindle square
C. punnett square
D. malecela square
Answer: | C |
null | Question: We must remember that the formal charge calculated for an atom is not the actual charge of the atom in the molecule. formal charge is only a useful bookkeeping procedure; it does not indicate the presence of these?
Options:
A. electron bonds
B. negative charges
C. actual charges
D. isotopes
Answer: | C |
null | Question: What type of muscle is found in the walls of other internal organs such as the stomach?
Options:
A. smooth muscle
B. Fiber Muscle
C. Tube Muscle
D. inorganic muscle
Answer: | A |
null | Question: What is the term for changes in speed or direction, changes that make a roller coaster ride so exciting?
Options:
A. acceleration
B. inclination
C. transmission
D. oscillation
Answer: | A |
null | Question: What builds up in an artery and reduces blood flow?
Options:
A. pressure
B. calcium deposits
C. surface tension
D. plaque
Answer: | D |
null | Question: What (nh3) is one of the few thermodynamically stable binary compounds of nitrogen with a nonmetal?
Options:
A. liquid nitrogen
B. acetic acid
C. ammonia
D. nitrous oxide
Answer: | C |
null | Question: Which organs control the amount of water, ions, and other substances in the blood by excreting more or less of them in urine?
Options:
A. ears
B. tongue
C. lungs
D. kidneys
Answer: | D |
null | Question: Hormones produced by what gland in the neck increase the rate of metabolism in cells throughout the body?
Options:
A. pituitary
B. thymus
C. kidney
D. thyroid
Answer: | D |
null | Question: The structural classification of joints divides them into bony, fibrous, cartilaginous, and synovial joints. the bones of fibrous joints are held together by fibrous connective tissue; the three types of fibrous joints are sutures, syndesomes, and what?
Options:
A. gomphoses
B. cartilaginous
C. articular
D. synchondrosis
Answer: | A |
null | Question: What system in the human body makes white blood cells that protect the body from diseases?
Options:
A. reproductive system
B. cardiovascular system
C. lymphatic system
D. renal system
Answer: | C |
null | Question: The way in which the sun produces light is called what?
Options:
A. incandescence
B. tumescence
C. photosynthesis
D. rays
Answer: | A |
null | Question: Catabolic reactions break down large organic molecules into smaller molecules, releasing the energy contained in what?
Options:
A. molecular bonds
B. liquid bonds
C. crystals bonds
D. chemical bonds
Answer: | D |
null | Question: The science of analyzing tree rings is called what?
Options:
A. dendrochronology
B. algorithms
C. conservation
D. estradiol
Answer: | A |
null | Question: What is friction that acts on objects while it is rolling over a surface called?
Options:
A. opposing friction
B. rolling friction
C. blowing friction
D. surface friction
Answer: | B |
null | Question: Focused on evolution, the studies of what man have reshaped and influenced all aspects of biology?
Options:
A. Albert Einstein
B. Linnaeus
C. charles darwin
D. scopes
Answer: | C |
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