The diagram below illustrates a theory on how giraffes may have developed their long necks.
Original, short-necked Keeps stretching neck Continues stretching Long-necked
ancestor
to reach leaves higher until neck becomes descendant after
up on tree
longer
many generations
Which of the following questions, if answered, would help us understand whether the theory illustrated in the diagram is supported by genetics?
O A. Do these giraffes reproduce sexually or asexually?
O B. Can a behavior, such as stretching a body part, be part of the giraffe's DNA?
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The diagram below illustrates a theory on how giraffes may have developed their long necks.
Origina...
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