During mitosis, the? A) DNA molecules unwind.
B) Histones and DNA molecules separate.
C) DNA molecules become more tightly coiled.
D) Nucleosomes become more tightly coiled.

check for the pregnancy rating of drug. if its class c or d see if other alternatives

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light-years

magnitude

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms