In some social insects, there are individuals that do not mate or may not be fertile but help look after other members of their group. Which statement regarding this situation is true?
A) Natural selection cannot act on the genes of nonreproducers since they do not leave offspring.
B) The ultimate cause of this behavior is the need to keep their group safe.
C) By protecting relatives, the nonreproducers increase the probability that their genes will be passed to the next generation.
D) Lack of mating is an agonistic behavior.
Answer: C
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(a) many organisms may have the same common name. (b) many common names may exist for the same organism. (c) the common name may vary by language and region. (d) all of the above are true.
A major change in evolutionary patterns over
long periods of time is best described as
a. macroevolution. b. microevolution. c. allopatric speciation. d. directional selection. e. sympatric speciation
Louisiana has lost an area the size of __________ to
the sea since the 1940s. a. Connecticut b. New Jersey c. Rhode Island d. Maryland e. New York
We use energy in many ways. What is one thing we cannot do to energy?
A) Destroy it. B) Waste it. C) Convert it. D) Store it.