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What type of bonds do alkanes only contain?
A. carbon-hydrogen bonds
B. hydrogen bonds
C. carbon-carbon single bonds
D. hydrogen-carbon bonds
Answer: | C |
Which part of the wave helps make the wave bend and cause refraction?
A. heavy part
B. dense part
C. bright part
D. shallow part
Answer: | D |
What are passed from one generation to the next so species can survive?
A. selections
B. fluctuations
C. mutations
D. adaptatioins
Answer: | D |
What kind of lines does a diffraction grating produce?
A. evenly spaced lines
B. randomly spaced lines
C. properly spaced lines
D. nearly spaced lines
Answer: | A |
Which type of ferns have yellow sporangia and no leaves?
A. Boston fern
B. Ostrich fern
C. Hothouse fern
D. whisk ferns
Answer: | D |
Ice masses, acquifers, and the deep ocean are examples of water what?
A. reservoirs
B. fields
C. seas
D. lakes
Answer: | A |
This heat is used to convert water into steam, which is then used to turn a turbine, thus generating what?
A. heating power
B. solar power
C. radiation power
D. electrical power
Answer: | D |
What atmospheric layer lies above the highest altitude an airplane can go and below the lowest altitude a spacecraft can orbit?
A. mesosphere
B. thermosphere
C. stratosphere
D. troposphere
Answer: | A |
Where are sensors for thermoregulation concentrated in the brain?
A. the hypothalamus
B. medulla
C. thyroid
D. pituitary gland
Answer: | A |
What is the first step in the breakdown of glucose to extract energy for cellular metabolism?
A. glycolysis
B. mutation
C. photosynthesis
D. mitosis
Answer: | A |
What charge do atoms carry?
A. positive
B. static
C. neutral
D. negative
Answer: | C |
The pleura that surrounds the lungs consists of how many layers?
A. four
B. three
C. two
D. one
Answer: | C |
Organisms that obtain food from outside themselves (i.e. they don't make their own food) are known as what?
A. autotrophs
B. zygotes
C. heterotrophs
D. fungi
Answer: | C |
In scientific investigations, descriptive statistics are useful for summarizing the characteristics of large what?
A. questions
B. tissues
C. samples
D. organisms
Answer: | C |
The process of the cytoplasm splitting apart and the cell pinching in two is known as what?
A. budding
B. mitosis
C. electrolysis
D. cytokinesis
Answer: | D |
What kind of mountainous formation can often be found near trenches?
A. earthquakes
B. craters
C. caves
D. volcanoes
Answer: | D |
Because it can be controlled intentionally, skeletal muscle is also called what type of muscle?
A. necessary
B. voluntary
C. involuntary
D. automatic
Answer: | B |
What effect in the atmosphere ensures that the earth maintains the correct temperature to support life?
A. smog effect
B. ozone effect
C. coriolis effect
D. greenhouse effect
Answer: | D |
Felsic, intermediate, mafic, and ultramafic are types of composition of what rock group?
A. metamorphic
B. asteroids
C. Sedimentary
D. igneous
Answer: | D |
What is the base of nearly all food chains on earth?
A. synthesis
B. glycolysis
C. photosynthesis
D. atherosclerosis
Answer: | C |
The skull is a part of a vertebrate endoskeleton that encloses and protects what organ?
A. lung
B. heart
C. nervous system
D. brain
Answer: | D |
The global pattern of precipitation is influenced by movements of what?
A. pollution masses
B. clouds
C. air valleys
D. air masses
Answer: | D |
What is the name of the region of a magnet that has the most pull?
A. center
B. grid
C. pole
D. tail
Answer: | C |
How many major forces of elevation cause allele frequencies to change?
A. five
B. three
C. one
D. four
Answer: | D |
Where in the atom is a neutron found?
A. proton
B. electron
C. the nucleus
D. orbit
Answer: | C |
In physics, what is defined as the average kinetic energy of the particles of matter?
A. temperature
B. density
C. magnetism
D. friction
Answer: | A |
What organelles are known as the "power plants" of the cell?
A. golgi body
B. mitochondria
C. plastid
D. flagella
Answer: | B |
Dalton's law and henry's law both describe aspects of what type of exchange?
A. gas
B. electron
C. energy
D. liquid
Answer: | A |
What vesicles store neurotransmitters?
A. hydrophobic
B. dendritic
C. synaptic
D. Golgi apparatus
Answer: | C |
What temperature scale is obtained by adding 273 degrees from the corresponding celsius temperature?
A. seismic scale
B. whittle scale
C. kelvin scale
D. ph scale
Answer: | C |
Hemoglobin is a large molecule made up of proteins and iron. it consists of four folded chains of a protein called this?
A. peptide
B. globin
C. histone
D. insulin
Answer: | B |
A new species is said to have evolved if separated members of a species evolve genetic differences that prevent what from occurring with the original members??
A. interbreeding
B. evolution
C. extinction
D. re-population
Answer: | A |
What term describes the orientation of a body lying face-down?
A. Under
B. Diagnal
C. prone
D. Supine
Answer: | C |
What happens to energy when an atom gains an electron?
A. it is folded
B. it is used
C. it is released
D. it increases
Answer: | C |
What is the name of the second most electronegative element?
A. carbon
B. oxygen
C. Hydrogen
D. nitrogen
Answer: | B |
What is the term for species evolving together?
A. coevolution
B. conjuration
C. specmutation
D. interconnection
Answer: | A |
Where do the eggs develop?
A. the uterus
B. the ovaries
C. the follicles
D. the glands
Answer: | B |
What's the other term for your wind pipe?
A. trachea
B. cornea
C. cochlea
D. esophagus
Answer: | A |
When food is scarce, starving cells secrete a molecule that stimulates neighboring cells to do what?
A. aggregate
B. compete
C. hoard energy
D. die off
Answer: | A |
What do cells secrete that binds to receptors?
A. endorphans
B. factor
C. stress
D. proteins
Answer: | B |
What is the term for the tube that carries sound waves into the ear?
A. flap canal
B. tone canal
C. sound canal
D. ear canal
Answer: | D |
In the cardiovascular system, what blood vessels carry blood away from the heart?
A. capillaries
B. cilia
C. arteries
D. veins
Answer: | C |
Molecules in the gas phase can collide with the liquid surface and reenter the liquid via what?
A. condensation
B. fermentation
C. combustion
D. liquidation
Answer: | A |
What guards the opening between the right atrium and the right ventricle?
A. superior vena cava
B. aorta
C. brachiocephalic trunk
D. tricuspid valve
Answer: | D |
The water cycle involves movement of water between air and what?
A. tree
B. land
C. animals
D. air
Answer: | B |
When we consider a chemical reaction, we need to take into account both the system and what?
A. time
B. fluctuations
C. date
D. sorroundings
Answer: | D |
What is a layer of tissue that lies between the shell and the body?
A. node
B. stem
C. silt
D. mantle
Answer: | D |
In what country can some of the largest natural crystals be found?
A. germany
B. canada
C. mexico
D. spain
Answer: | C |
What are the primary producers in terrestrial biomes?
A. soil
B. animals
C. plants
D. gases
Answer: | C |
Where are aerofoils found?
A. birds and cars
B. airplanes and plants
C. birds and busses
D. birds and airplanes
Answer: | D |
What is the si unit for pressure?
A. pascal
B. watt
C. le
D. laurent
Answer: | A |
Marine fishes take in divalent ions by incessantly drinking what?
A. algae
B. oxygen
C. sand
D. seawater
Answer: | D |
The simplest and smallest particle of matter that still has chemical properties of the element is called?
A. a nucleus
B. an atom
C. an isotope
D. a molecule
Answer: | B |
Frequency and intensity are two measurable properties of what?
A. heat
B. lines
C. troughs
D. wave
Answer: | D |
While most mammals give birth to live young, monotremes can do what?
A. adopt offspring
B. reproduce asexually
C. lay eggs
D. steal eggs
Answer: | C |
What happens to old oceanic crust at convergent boundaries?
A. emerges
B. created
C. destroyed
D. dissolves
Answer: | C |
When electrons are shared between two atoms, they make a bond called a what?
A. ionic bond
B. covalent bond
C. metallic bond
D. hydrogen bond
Answer: | B |
What happens to the temperature of matter as light is absorbed?
A. it drops
B. it stays the same
C. it increases
D. it triples
Answer: | C |
By shocking ocean water, earthquakes can cause what deadly ocean waves?
A. typhoons
B. tsunamis
C. deep currents
D. ebb tides
Answer: | B |
Where are the desmosome found in a cell?
A. coating
B. neuron
C. epithelium
D. epithelial
Answer: | C |
An action potential that starts at the axon hillock moves along the axon only toward what?
A. ionic pathways
B. the synaptic terminals
C. nerve endings
D. polar synapses
Answer: | B |
Fission is a type of radioactivity in which large nuclei spontaneously break apart into what?
A. faster nuclei
B. light nuclei
C. active nuclei
D. smaller nuclei
Answer: | D |
Bones are the main organs of what system, which also includes cartilage and ligaments?
A. skeletal system
B. lymphatic system
C. digestive system
D. endocrine system
Answer: | A |
Most waves strike the shore at an angle. this causes what?
A. fontaine drift
B. erosion
C. longshore drift
D. tide
Answer: | C |
What is the difference between the daily high and the daily low?
A. margin of error
B. sunrise and sunset
C. weather forecast
D. tidal change
Answer: | D |
Spermatogonia are the stem cells of what male sex organs?
A. Prostate
B. Epididymis
C. testes
D. ovaries
Answer: | C |
Sensory neurons transmit nerve impulses from sense organs and internal organs to the brain via the?
A. nerve endings
B. spinal column
C. nervous system
D. spinal cord
Answer: | D |
Sexually reproducing organisms alternate between which stages?
A. diploid and traploid
B. haploid and diploid
C. binary and diploid
D. binary and haploid
Answer: | B |
Acids turn blue litmus paper which color?
A. red
B. purple
C. white
D. grey
Answer: | A |
The development of a head region is called what?
A. spore
B. trichina
C. cephalization
D. cocklebur
Answer: | C |
Which hormone helps cells absorb sugar from the blood?
A. adrenaline
B. insulin
C. cortisol
D. estrogen
Answer: | B |
What is the number of electrons equal to in every electrically neutral atom?
A. Electrons
B. molecules
C. nucleus
D. protons
Answer: | D |
Does climate change have a positive or negative effect on reproductive success?
A. neither
B. positive
C. negative
D. both
Answer: | C |
What is the most common form of dwarfism in humans?
A. malnutrition
B. anemia
C. achondroplasia
D. alopecia
Answer: | C |
What is the term for groups of three successive nucleotide bases in dna?
A. triads
B. triplets
C. triple play
D. tertiary bases
Answer: | B |
The coccyx, or tailbone, results from the fusion of four small what?
A. rib vertebrae
B. arsine vertebrae
C. alangulam vertebrae
D. coccygeal vertebrae
Answer: | D |
What is a pure substance that cannot be separated into any other substances called?
A. light
B. element
C. Spears
D. Cells
Answer: | B |
How many different types of stresses are there?
A. three
B. five
C. four
D. seven
Answer: | C |
A molecule has two structures that can be generated. what is this called?
A. resonance hybrids
B. ethnocentrism
C. congruence
D. isomerism
Answer: | D |
An antigen is a molecule that reacts with some component of the what response?
A. fight or flight
B. hormones
C. immune
D. digestion
Answer: | C |
What bodily system is primarily responsible for fighting pathogens in the body?
A. digestion
B. Muscular
C. Cardiovascular
D. immune
Answer: | D |
Displacement, velocity, acceleration, and force are examples of what type of quantity that has magnitude and direction?
A. vector
B. cycles
C. wave
D. frequency
Answer: | A |
Gases such as co2 and methane can trap what energy in earth's atmosphere, before radiating it into space?
A. sunlight energy
B. thermal energy
C. potential energy
D. mechanical energy
Answer: | B |
What happens when heated water is released into a body of water?
A. thermal pollution
B. crystalline pollution
C. geysers
D. gaseous pollution
Answer: | A |
What term is used to describe a chemical released by an animal that affects the behavior or physiology of animals of the same species?
A. pheromone
B. enzyme
C. amino
D. isolate
Answer: | A |
Producers at the base of ecological food webs are also known as?
A. autotrophic
B. endoscopic
C. mutualistic
D. symbiotic
Answer: | A |
What is the term for the gas in smog that can damage plants?
A. dioxide
B. sulphur
C. ozone
D. carbon
Answer: | C |
What must happen for two ions to form an ionic bond?
A. Two ions need to be the same size
B. two ions need to have the same charge
C. two ions need to have neutral charges
D. two ions need to have opposite charges
Answer: | D |
What is the study of the similarities and differences in the embryos of different species?
A. comparative embryology
B. diversified embryology
C. example embryology
D. prenatal biology
Answer: | A |
What are the main organs of the respiratory system?
A. lungs
B. ovaries
C. intestines
D. kidneys
Answer: | A |
What do you call the traits that allow a plant, animal, or other organism to survive and reproduce in its environment?
A. additions
B. advantages
C. settings
D. adaptations
Answer: | D |
The products of photosynthesis are glucose and what else?
A. oxygen
B. carbon
C. nitrogen
D. hydrogen
Answer: | A |
In what way do bacteria reproduce?
A. binary fission
B. fragmentation
C. cellular respiration
D. sexual reproduction
Answer: | A |
What type of fibers are made mostly of protein in living things?
A. liver fibers
B. muscle fibers
C. organ fibers
D. connective tissue fibers
Answer: | B |
What force is responsible for erosion by flowing water and glaciers?
A. weight
B. kinetic
C. electromagnetic
D. gravity
Answer: | D |
Nearly all protists exist in some type of aquatic environment, including freshwater and marine environments, damp soil, and even snow. several protist species are parasites that infect animals or plants. a few protist species live on dead organisms or their wastes, and contribute to what?
A. habitat loss
B. greenhouse ... | C |
What type of rocks form from cooled magma or lava?
A. sedementary
B. granite
C. igneous
D. metamorphic
Answer: | C |
What kind of cells have positive cell potentials, and all the reduction reactions are reversible?
A. new cells
B. inhibited cells
C. galvanic cells
D. neutral cells
Answer: | C |
A fish's stream-lined body that reduces water resistance is an example of what kind of response to an aquatic lifestyle?
A. retraction
B. evolution
C. natural selection
D. adaptation
Answer: | D |
Emissions of what gas into the atmosphere from fossil fuel burning have been rising for the past several decades?
A. oxygen
B. carbon dioxide
C. sulphur
D. neon
Answer: | B |
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