The fact that regeneration is a common type of reproduction in sea stars suggests that
A. sea stars have almost no predators.
B. adult sea star cells retain the mechanism to form a complete animal.
C. sea star populations have high levels of genetic diversity.
D. all sea stars are haploid.
Answer: B
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In the process of ________, ATP is synthesized when excited electrons from chlorophyll P700 pass through a series of electron carriers then return to chlorophyll P700.
A. photosynthesis B. cyclic photophosphorylation C. noncyclic photophosphorylation D. acyclic photophosphorylation
In a(n) hydrostatic skeleton, the force of muscle contraction is applied against a rigid, external body covering
Indicate whether the statement is true or false.
Four of the five answers listed below are produced by the same germ layer. Select the exception
a. nervous system b. muscle system c. circulatory system d. reproductive system e. urinary system
In an organism's binomial scientific name, the first of the two names is the
A) order. B) genus. C) species. D) family.