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Crocco LE
Test Description: Random regents questions
Instructions: Answer all questions to get your test result.
1) In what way are photosynthesis and cellular respiration similar?
A
They both require sunlight.
B
They both involve organic and inorganic molecules.
C
They both require oxygen and produce carbon dioxide.
D
They both occur in chloroplasts.
2) To increase chances for a successful organ transplant, the person receiving the organ should be given special medications. The purpose of these medications is to
A
decrease the immune response in the person receiving the transplant
B
decrease mutations in the person receiving the transplant
C
increase the immune response in the person receiving the transplant
D
increase mutations in the person receiving the transplant
3) A volcanic eruption destroyed a forest, covering the soil with volcanic ash. For many years, only small plants could grow. Slowly, soil formed in which shrubs and trees could grow. These changes are an example of
A
ecological succession
B
manipulation of genes
C
evolution of a species
D
equilibrium
4) In an ecosystem, the growth and survival of organisms are dependent on the availability of the energy from the Sun. This energy is available to organisms in the ecosystem because
A
all organisms in a food web have the ability to use light energy
B
producers have the ability to store energy from light in organic molecules
C
all organisms in a food web feed on autotrophs
D
consumers have the ability to transfer chemical energy stored in bonds to plants
5) A major reason that humans can have such a significant impact on an ecological community is that humans
A
remove large amounts of carbon dioxide from the air
B
reproduce faster than most other species
C
can modify their environment through technology
D
are able to increase the amount of finite resources available
6) Which factor has the greatest influence on the type of ecosystem that will form in a particular geographic area?
A
climate conditions
B
percentage of nitrogen gas in the atmosphere
C
number of carnivores
D
genetic variations in the animals
7) Rabbits are herbivores that are not native to Australia. Their numbers have increased steadily since being introduced into Australia by European settlers. One likely reason the rabbit population was able to grow so large is that the rabbits
A
were able to prey on native herbivores
B
reproduced more slowly than the native animals
C
successfully competed with native herbivores for food
D
could interbreed with the native animals
8) In preparation for an electrophoresis procedure, enzymes are added to DNA in order to
A
cut DNA into fragments
B
produce longer sections of DNA
C
convert the DNA into gel
D
change the color of the DNA
9) Paper chromatography is a laboratory technique that is used to
A
stain cell organelles
B
compare relative cell sizes
C
separate different molecules from one another
D
indicate the pH of a substance
10) A marathon runner frequently experiences muscle cramps while running. If he stops running and rests, the cramps eventually go away. The cramping in the muscles most likely results from
A
increased glucose production in the muscle
B
the runner running too slowly
C
the runner warming up before running
D
lack of adequate oxygen supply to the muscle
*select an answer for all questions
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