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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 mutation rate in the population would be rapid.
B
The population would evolve rapidly.
C
There would be little chance for variation within the population.
D
The population would be more likely to adapt to a changing environment.
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
can lead to a lower mutation rate in the offspring of the human
C
may result in the production of a defective protein
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
hormones
C
electrophoresis
D
a scalpel
4) Much of the carbon dioxide produced by green plants is not excreted as a metabolic waste because it
A
is too large to pass through cell membranes
B
can be used for the synthesis of proteins
C
is needed for cellular respiration
D
can be used for photosynthesis
5) To determine evolutionary relationships between organisms, a comparison would most likely be made between all of the characteristics below except
A
sequences in their DNA molecules
B
structure of protein molecules present
C
methods of reproduction
D
number of their ATP molecules
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
complex carbohydrates
B
biological catalysts
C
minerals
D
fats
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
Succession will continue in the ecosystem until one species of marine organism is established.
B
The ecosystem will change until a new stable community is established.
C
Ecological succession will no longer occur in this marine ecosystem.
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
decomposers are being destroyed
B
growing crops is depleting the ozone shield
C
deforestation has increased the levels of oxygen in the atmosphere
D
industrialization has increased the amount of carbon dioxide in the air
9) Deforestation of areas considered to be rich sources of genetic material could limit future agricultural and medical advances due to
A
the loss of biodiversity
B
the improved quality of the atmosphere
C
the maintenance of dynamic equilibrium
D
an increase in the rate of evolutionary change
10) The size of a frog population in a pond remains fairly constant over a period of several years because of
A
the depth of water
B
decreasing competition
C
excessive dissolved oxygen
D
environmental carrying capacity
*select an answer for all questions
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