Image "C" indicates that only portions of the habitat are favorable to support growth. This type of population distribution, where growth occurs in grouping patterns, is called
A. nonselected distribution.
B. uniform distribution.
C. clumped distribution.
D. random distribution.
E. forced distribution.
C. clumped distribution.
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Which of the following characterizes parthenogenesis?
A) An individual may change its sex during its lifetime B) Specialized groups of cells grow into new individuals C) An organism is first a male and then a female D) An egg develops without being fertilized E) Both mates have male and female reproductive organs
Pleiotropy refers to:
A. the interaction of two genes affecting a single trait. B. the interaction of multiple genes affecting multiple traits. C. the interaction of multiple genes affecting a single trait. D. a single gene having multiple effects. E. two different norms of reaction for a single trait.
Some bacteria have been found to have much higher rates of mutation than other members of their population; they are termed "mutators." What do you think is the most likely reason for their higher rates of mutation?
A. They have much smaller genomes than regular bacteria. B. They are incapable of bacterial transformation. C. Their DNA polymerase has compromised 3’ to 5’ exonuclease function. D. Their DNA polymerase has compromised 5’ to 3’ polymerase function. E. All choices are equally likely to lead to higher rates of mutation.
Living organisms are members of all of the levels listed; however, rocks are components of ________
A) the community B) an organism C) the population D) the ecosystem