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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 require oxygen and produce carbon dioxide.
C
They both occur in chloroplasts.
D
They both involve organic and inorganic molecules.
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
increase the immune response in the person receiving the transplant
C
decrease mutations 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
evolution of a species
C
manipulation of genes
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
all organisms in a food web feed on autotrophs
C
consumers have the ability to transfer chemical energy stored in bonds to plants
D
producers have the ability to store energy from light in organic molecules
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
are able to increase the amount of finite resources available
D
can modify their environment through technology
6) Which factor has the greatest influence on the type of ecosystem that will form in a particular geographic area?
A
percentage of nitrogen gas in the atmosphere
B
climate conditions
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
reproduced more slowly than the native animals
B
could interbreed with the native animals
C
were able to prey on native herbivores
D
successfully competed with native herbivores for food
8) In preparation for an electrophoresis procedure, enzymes are added to DNA in order to
A
cut DNA into fragments
B
change the color of the DNA
C
convert the DNA into gel
D
produce longer sections of DNA
9) Paper chromatography is a laboratory technique that is used to
A
separate different molecules from one another
B
stain cell organelles
C
indicate the pH of a substance
D
compare relative cell sizes
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
lack of adequate oxygen supply to the muscle
B
the runner running too slowly
C
increased glucose production in the muscle
D
the runner warming up before running
*select an answer for all questions
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