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Crocco LE
Test Description: Random regents questions
Instructions: Answer all questions to get your test result.
1) Which statement best describes a population of organisms if cloning is the only method used to reproduce this population?
A
The population would be more likely to adapt to a changing environment.
B
The mutation rate in the population would be rapid.
C
There would be little chance for variation within the population.
D
The population would evolve rapidly.
2) One disadvantage of a genetic mutation in a human skin cell is that it
A
may alter the sequence of simple sugars in insulin molecules
B
may result in the production of a defective protein
C
can lead to a lower mutation rate in the offspring of the human
D
can alter the rate of all the metabolic processes in the human
3) The DNA of a human cell can be cut and rearranged by using
A
enzymes
B
electrophoresis
C
hormones
D
a scalpel
4) Much of the carbon dioxide produced by green plants is not excreted as a metabolic waste because it
A
can be used for photosynthesis
B
can be used for the synthesis of proteins
C
is needed for cellular respiration
D
is too large to pass through cell membranes
5) To determine evolutionary relationships between organisms, a comparison would most likely be made between all of the characteristics below except
A
number of their ATP molecules
B
sequences in their DNA molecules
C
structure of protein molecules present
D
methods of reproduction
6) Plants such as the Venus flytrap produce chemical compounds that break down insects into substances that are usable by the plant. The chemical compounds that break down the insects are most likely
A
minerals
B
biological catalysts
C
fats
D
complex carbohydrates
7) In December 2004, a tsunami (giant wave) destroyed many of the marine organisms along the coast of the Indian Ocean. What can be expected to happen to the ecosystem that was most severely hit by the tsunami?
A
Ecological succession will no longer occur in this marine ecosystem.
B
Succession will continue in the ecosystem until one species of marine organism is established.
C
The ecosystem will change until a new stable community is established.
D
The organisms in the ecosystem will become extinct.
8) One possible reason for the rise in the average air temperature at Earth’s surface is that
A
growing crops is depleting the ozone shield
B
decomposers are being destroyed
C
industrialization has increased the amount of carbon dioxide in the air
D
deforestation has increased the levels of oxygen in the atmosphere
9) Deforestation of areas considered to be rich sources of genetic material could limit future agricultural and medical advances due to
A
the improved quality of the atmosphere
B
an increase in the rate of evolutionary change
C
the maintenance of dynamic equilibrium
D
the loss of biodiversity
10) The size of a frog population in a pond remains fairly constant over a period of several years because of
A
excessive dissolved oxygen
B
the depth of water
C
environmental carrying capacity
D
decreasing competition
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