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As per the kinetic-molecular theory, in what direction do the molecules and ions of liquids move?
A. same direction
B. opposite direction
C. alter directions
D. random directions
Answer: | D |
Cephalization refers to the development of what anatomical region, which evolved at the same time as bilateral symmetry in animals?
A. heart
B. tail
C. chest
D. head
Answer: | D |
What term describes a region of space around an atom that has a non-zero probability for an electron with a particular energy?
A. orbital lobe
B. related orbital
C. atomic orbital
D. minimal orbital
Answer: | C |
How do the male gorillas show display behaviors?
A. food gathering
B. showing aggression
C. spontaneous mutation
D. vocalization
Answer: | B |
A genetic molecule is called dna, which stands for this?
A. deoxyribonucleic acid
B. dark nitrogen amine
C. di-nitrous ammonia
D. dense ribonucleic acid
Answer: | A |
Is sleep an active or inactive state in the brain?
A. different
B. intense
C. inactive
D. active
Answer: | D |
What is is a measurement of the force amplification of a machine?
A. mechanical pull
B. mechanical push
C. mechanical advantage
D. force multiplier
Answer: | C |
What branch of science is the study of the solid earth?
A. geology
B. biology
C. palentology
D. ecology
Answer: | A |
What is harmless water vapor, for a powerplant?
A. plasma
B. wind
C. fog
D. steam
Answer: | D |
What regulates the passage of blood into capillary beds?
A. precapillary sphincters
B. diocesan sphincters
C. bicellular sphincters
D. cell membrane
Answer: | A |
What do you call the symbiotic relationship where a parasite benefits while the host is harmed?
A. parasitism
B. invasion
C. symbolic damage
D. hostism
Answer: | A |
What length of time is human gestation commonly divided into?
A. four quarters
B. two halves
C. fifty weeks
D. three trimesters
Answer: | D |
What substance, involved in most biochemical reactions, is essential to life?
A. carbon
B. water
C. air
D. nitrogen
Answer: | B |
What type of tissue covers the outside of a plant?
A. anterior
B. epidermal
C. porous
D. dermal
Answer: | D |
Metamorphic rocks form when an existing rock is changed by heat or what?
A. pressure
B. chemical reaction
C. cold
D. radiation
Answer: | A |
What anatomical structure serves as the conduit of the oocyte from the ovary to the uterus?
A. uterine tubes
B. urethra
C. nephrons
D. ureters
Answer: | A |
What cell structures are like storage centers and tend to be larger in plant cells?
A. tubules
B. alleles
C. nuclei
D. vacuoles
Answer: | D |
Oscillations in the transcription of certain genes are at the heart of the molecular mechanisms underlying what biological rhythms?
A. brain rhythms
B. circadian rhythms
C. reproductive rhythms
D. metastasis rhythms
Answer: | B |
Give an example of a ball-and-socket joint, which has the greatest range of motion, allowing movement in several directions.
A. pulley
B. lever
C. shoulder
D. monkey wrench
Answer: | C |
Difference in electric potential energy are measured in what basic unit?
A. volts
B. knots
C. watts
D. moles
Answer: | A |
How many stars are in our solar system?
A. one
B. none
C. two
D. three
Answer: | A |
Landslides and mudslides are the most destructive types of what geologic phenomenon?
A. mass movement
B. land momentum
C. formation movement
D. intensity movement
Answer: | A |
What scientific word, which gives its name to a type of rock, means "to change form"?
A. igneous
B. metamorphism
C. evaporation
D. evolution
Answer: | B |
The sporophyte phase is the longest phase in the life of what?
A. angiosperm
B. arthropod
C. gymnosperm
D. echinoderm
Answer: | C |
Hair color and skin color are known as what?
A. abominations
B. habits
C. traits
D. mutations
Answer: | C |
Amines are classified according to the number of carbon atoms bonded directly to what atom?
A. hydrogen
B. helium
C. nitrogen
D. oxygen
Answer: | C |
Because core electrons are closer to the nucleus, they are not involved in what?
A. fission
B. diffusion
C. splitting
D. bonding
Answer: | D |
The upper portion of the septum is formed by the perpendicular plate of which bone?
A. ethmoid bone
B. duodenum bone
C. concomitant bone
D. colossal bone
Answer: | A |
Cells in green algae divide along cell plates called what?
A. cellulose
B. phragmoplasts
C. xanthophylls
D. chloroplasts
Answer: | B |
What are saprobes that decompose organic matter?
A. sponges
B. chordates
C. fungi
D. protists
Answer: | C |
Because complex plant carbohydrates such as cellulose are more difficult to digest, what animal diet is associated with a complicated digestive system?
A. carnivore
B. omnivore
C. herbivore
D. polyvore
Answer: | C |
What are all cells surrounded by?
A. amino acids
B. cytoplasm
C. cell membrane
D. cell substrate
Answer: | C |
The leaves of all of what type of plants have two basic parts in common: the blade and petiole?
A. perennials
B. deciduous
C. evergreen
D. flowering plants
Answer: | D |
Through what do plants move enormous amounts of water from the soil to the atmosphere?
A. evaporation
B. perspiration
C. respiration
D. transpiration
Answer: | D |
What explains why two different species cannot occupy the same niche in the same place for very long?
A. natural selection
B. competive exclusion princple
C. evolution
D. survival exclusion princple
Answer: | B |
The cytoplasm of prokaryotic cells has a high concentration of dissolved solutes. therefore, the osmotic pressure within the cell is what?
A. relative
B. relatively high
C. relatively low
D. relatively normal
Answer: | B |
What are the ultimate source of genetic variation?
A. proteins
B. parasites
C. mutations
D. gravity
Answer: | C |
The electron beam scans the surface of the sample, usually coated with a thin film of which metal?
A. gold
B. silver
C. platinum
D. copper
Answer: | A |
In a longitudinal wave, what term is a measure of how compressed particles of the medium become when the wave passes through?
A. amplitude
B. magnitude
C. frequency
D. voltage
Answer: | A |
All cells have certain parts in common. these parts include the cell membrane, cytoplasm, dna, and what?
A. crystals
B. ribosomes
C. chromosomes
D. lipids
Answer: | B |
Competition within a species is called what?
A. reproducible competition
B. internal competition
C. intraspecific competition
D. species competion
Answer: | C |
What occurs when rain falls more quickly than water can be absorbed into the ground or carried away by rivers or streams?
A. floods
B. greenhouse effect
C. landslides
D. typhoons
Answer: | A |
What are the building blocks of dna?
A. genes
B. prokaryotes
C. nucleotides
D. peptides
Answer: | C |
Each line in a structural formula represents a pair of shared what?
A. atoms
B. ions
C. electrons
D. waves
Answer: | C |
What do vertebrate chordates possess that invertebrate chordates do not?
A. Thumb
B. backbone
C. Milk production
D. parasite
Answer: | B |
In vascular plants, what two basic structures are made of dermal, vascular, and ground tissues?
A. stems and flowers
B. roots and stems
C. fruits and nuts
D. roots and seed
Answer: | B |
What is the process resulting in living things with beneficial traits producing more offspring?
A. Natural choice.
B. natural selection
C. natural change
D. fluid selection
Answer: | B |
Solar cells create voltages directly from light, while thermoelectric devices create voltage from differences in what?
A. wire width
B. oxygen
C. temperature
D. wattage
Answer: | C |
What theory goes beyond classical mechanics to describe the behavior of near-light-speed objects?
A. special relativity
B. simple relativity
C. normal relativity
D. spacial relativity
Answer: | A |
What type of structure between the esophagus and the stomach normally opens only when a bolus arrives?
A. larynx
B. gland
C. intestine
D. sphincter
Answer: | D |
Viroids are plant pathogens much simpler than what, but like them can reproduce only within a host cell?
A. viruses
B. pests
C. parasites
D. bacteria
Answer: | A |
"crossing over" occurs during what phase of mitosis?
A. prophase VI
B. Prophase ii
C. prophase iii
D. prophase i
Answer: | D |
What is the preferred food for almost all primates except for humans?
A. grass
B. wheat
C. corn
D. fruit
Answer: | D |
What property means that something can return to its original shape after being stretched or compressed?
A. homeostasis
B. elasticity
C. viscosity
D. friction
Answer: | B |
Where does all igneous rock come from?
A. stratosphere
B. the moon
C. magma or lava
D. oceans
Answer: | C |
Three ways that waves may interact with matter are reflection, refraction, and what?
A. dispose
B. diffraction
C. absorption
D. distortion
Answer: | B |
Sucrose consists of one molecule of glucose and one molecule of what else?
A. lactose
B. protein
C. fructose
D. alcohol
Answer: | C |
Many countries have attempted to reduce the human impact on climate change by reducing their emission of what greenhouse gas?
A. methane
B. nitrous oxide
C. acid dioxide
D. carbon dioxide
Answer: | D |
What occurs when arterioles lose their normal muscular tone and dilate dramatically?
A. vascular shock
B. congenital shock
C. cardio shock
D. respiration shock
Answer: | A |
Large or small numbers are expressed in scientific notation, which use powers of this?
A. 16
B. 10
C. 4
D. 2
Answer: | B |
Budding in sponges is a form of what type of reproduction?
A. sexual
B. competitive
C. asexual
D. reasonable
Answer: | C |
Behaviors that are closely controlled by genes and have little to no environmental influence are called what kinds of behaviors?
A. innate behaviors
B. generalized behaviors
C. learned behaviors
D. diverse behaviors
Answer: | A |
Mutations which benefit the organism in which they occur are known as?
A. helpful mutations
B. extraordinary mutations
C. beneficial mutations
D. healthy mutations
Answer: | C |
When gas particles collide, what kinds of collisions are these considered?
A. conservative
B. inelastic
C. elastic
D. perfect
Answer: | C |
Around 1200 species of what broad animal group are currently at risk of extinction due to human activity?
A. amphibians
B. mammals
C. reptiles
D. birds
Answer: | D |
The galápagos islands are a group of 16 volcanic islands 600 miles off the west coast of what continent?
A. south america
B. europe
C. north america
D. asia
Answer: | A |
What structures on the gastrodermal cells keep the contents of the gastrovascular cavity agitated and help distribute nutrients?
A. telomeres
B. flagella
C. sporangia
D. nucleus
Answer: | B |
What is the factor that affects the solubility of solutes in all three states?
A. heat
B. temperature
C. oxygen
D. color
Answer: | B |
What kind of ph would you find in water from bogs?
A. regular ph
B. higher ph
C. normal ph
D. lower ph
Answer: | D |
Where do most of the digestion reactions occur?
A. large intestine
B. liver
C. mouth
D. small intestine
Answer: | D |
What is the name of the process where light is produced without heat?
A. luminescence
B. radiation
C. effervescence
D. fluorescence
Answer: | A |
Meats and dairy products link to photosynthesis because the animals were fed what?
A. plant-based foods
B. carnivorous diets
C. biofuel
D. chloroplasts
Answer: | A |
What the scientific concept stating that when looking at two competing theories, the one with fewer assumptions should be chosen?
A. law of averages
B. law of thermodynamics
C. law of parsimony
D. law of simplicity
Answer: | C |
What type of map would show average temperatures and rainfall?
A. rainfall map
B. carbon map
C. landscape map
D. climate map
Answer: | D |
What is the name of the sugar that plants produce to be used as food?
A. chlorophyll
B. glucose
C. glucosamine
D. insulin
Answer: | B |
Just under their skin, marine mammals have a very thick layer of insulating fat called what?
A. blubber
B. tissue
C. cellulose
D. lipisomes
Answer: | A |
While in the lungs, blood gives up carbon dioxide and picks up what element before returning to the heart?
A. nitrogen
B. hydrogen
C. methane
D. oxygen
Answer: | D |
White blood cells called what travel to areas of the body that are inflamed?
A. spirochetes
B. gametocytes
C. platelets
D. phagocytes
Answer: | D |
How many valence electrons can be found in a carbon atom?
A. five
B. three
C. four
D. One
Answer: | C |
Diaphragm, lungs, and trachea take air deep into the body and provide oxygen gas to what?
A. heart
B. molecules
C. brain
D. bloodstream
Answer: | D |
What gases move in and out of blood during gas exchange?
A. nitrogen, carbon dioxide
B. oxygen, carbon monoxide
C. oxygen, carbon dioxide
D. oxygen, nitrogen
Answer: | C |
What keeps various species from mating and reproducing outside their own species?
A. cancer organ incompatibility
B. brain organ incompatibility
C. digestive system incompatibility
D. reproductive organ incompatibility
Answer: | D |
A refrigerator must do work to reverse the normal direction of what?
A. visible energy flow
B. coolant energy flow
C. thermal energy flow
D. spectral energy flow
Answer: | C |
The bone matrix consists of tough protein fibers—mainly what?
A. tissues
B. collagen
C. tendons
D. hemoglobin
Answer: | B |
Alkynes are what type of compound?
A. proteins hydrocarbons
B. unsaturated hydrocarbons
C. Split Hydrocarbons
D. reversible hydrocarbons
Answer: | B |
Solar cells turn sunlight directly into what?
A. gas
B. water
C. electricity
D. cold
Answer: | C |
What type of invertebrate typically has a single spiraled shell?
A. gastropod
B. arthropod
C. bipod
D. anthropod
Answer: | A |
What are nutrients the body needs in relatively large amounts called?
A. abundances
B. vitamins
C. macronutrients
D. adulterants
Answer: | C |
What is observed when two perpendicular flagella moves?
A. pushing motion
B. spinning motion
C. turning motion
D. shaking motion
Answer: | B |
What is the name of a branch of the chemistry that deals with the interconversion of chemical energy and electrical energy?
A. electrochemistry
B. Theoretical Chemistry
C. Inorganic chemistry
D. Biochemistry
Answer: | A |
Which system in the body exchanges gases with the outside air?
A. digestive
B. immune
C. vascular
D. respiratory
Answer: | D |
What is a double membrane of the nucleus that encloses the genetic material?
A. the nuclear compression
B. the cell wall
C. the nuclear envelope
D. the complex envelope
Answer: | C |
What is the highest taxon in the classification of living things?
A. a class
B. a domain
C. a phylum
D. a family
Answer: | B |
Animal-like protists are called what?
A. protozoa
B. genus
C. larvae
D. bacteria
Answer: | A |
Mating with no strong pair-bonds is called?
A. heterogeneous
B. covalent
C. promiscuous
D. mutual
Answer: | C |
Rna is especially important during synthesis of what?
A. mitochondria
B. sulfur
C. glucose
D. protein
Answer: | D |
Like other bryophytes, moss plants spend most of their life cycle as what?
A. protozoa
B. zygotes
C. copepods
D. gametophytes
Answer: | D |
What is the ring of hooks tapeworms use to attach themselves?
A. dewlap
B. flagella
C. cilia
D. scolex
Answer: | D |
What form because water erodes the outside of curves and deposits eroded material on the inside?
A. inlets
B. caverns
C. cascades
D. meanders
Answer: | D |
Which waterfall series is the largest on the planet?
A. angel falls
B. yosemite falls
C. iguassu falls
D. niagara falls
Answer: | C |
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