The amnion is to the amniotic fluid as the allantois is to the
A. blood cell precursors.
B. umbilical blood vessels.
C. chorionic villi.
D. yolk.
E. amniotic cavity.
Answer: B
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Although Darwin and Wallace understood the central importance of heritability among organisms to
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Although they do not possess the nervous and muscular systems animals do, plants are able to physically respond to their environments. Evaluate and support this statement
What will be an ideal response?
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