As cleavage divisions continue, the ball or layer hollows out to form the ____
a. morula
b. zygote
c. blastomere
d. blastula
e. gastrula
ANSWER: d
Biology & Microbiology
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Indicate whether the statement is true or false.
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Mammals are least likely to be _____
a. mutualists c. brood parasites b. commensal d. predators
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Regulation of development takes place mostly at the level of:
a. replication. b. transcription. c. posttranscription. d. translation. e. posttranslation
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M checkpoint
What will be an ideal response?
Biology & Microbiology