In organogenesis, the ectoderm gives rise to:

a. muscle.
b. the digestive tract.
c. sense organs.
d. the circulatory system.
e. skeletal tissue.


c

Biology & Microbiology

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What was the immediate cause of the end-Cretaceous extinction event?

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Choose the letter of the best match from the following:A. cognitionB. waggle danceC. navigationD. filial imprintingE. fixed action patternA form of communication in honeybees.

Fill in the blank(s) with the appropriate word(s).

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Ernest Rutherford's key experiment on alpha particle bombardment of gold foil was important to the development of

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