The process by which an animal's embryonic cells specialize into specific cell types is called____________.

A. specialization
B. differentiation
C. cloning
D. regeneration
E. senescence


Answer: B

Biology & Microbiology

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Which term refers to the flow of genetic information from DNA to mRNA to proteins?

a. the central dogma b. gene expression c. telomere replication d. the transcription bubble

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The benthic community of an ocean, with the exception of hydrothermal vents, is best described as

A) completely heterotrophic and very diverse. B) completely autotrophic and very diverse. C) completely phototrophic and not very diverse. D) mostly heterotrophic and not very diverse.

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When fisheries managers move fish from one lake to another, this causes gene ________.

A. dominance B. blending C. mutation D. flow

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Communication among neurons and between neurons and other target cells occurs across short distances at a structure called the __________, a region where the signaling cell and the target cell are very close together.

a. catecholamine b. neurotransmitter c. synapse d. epinepherine

Biology & Microbiology