Signal molecules that determine relative positions during development are known as  

A.  inductors.
B.  organizers.
C.  cadherin domains.
D.  derepressers.
E.  morphogens.


E.  morphogens.

Biology & Microbiology

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Answer the following statement true (T) or false (F)

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Which of the following is an adaptation to increase the surface area of a part of a cell that is involved in cellular respiration?

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Indicate whether the statement is true or false

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