The evolution of petals through the AP3 gene is best explained by
A. a new gene mutation.
B. the modification of an existing gene for a new function.
C. homoplastic convergence.
D. gene duplication and divergence.
E. conserved genes.
D. gene duplication and divergence.
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The observation that different geographical areas sometimes exhibit plant and animal communities of similar appearance, even though the individual plants and animals are not closely related, is called
A. the fossil record. B. homology. C. convergent evolution. D. divergent evolution. E. adaptation.
Which gland produces/releases hormones that have the widest range of effects on the body?
a. pineal b. pituitary c. thyroid d. adrenal e. pancreas
What DNA modifications characterize epigenetic marks?
What will be an ideal response?
If ATP production is blocked, decreased transport of material across a membrane occurs. Which type of transport is affected? Choose all that apply.A) osmosisB) diffusionC) facilitated diffusionD) active transportE) endocytosis
What will be an ideal response?