The horizontal axis of the cladogram depicted below is a timeline that extends from 100,000 years ago to the present; the vertical axis represents nothing in particular. The labeled branch points on the tree (V-Z) represent various common ancestors. Let's say that only since 50,000 years ago has there been enough variation between the lineages depicted here to separate them into distinct species, and only the tips of the lineages on this tree represent distinct species.

 In Darwin's tree of life, each fork in the tree represents ________.

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#Question id: 11959

#Unit 7. System Physiology – Animal

The process by which digested dietary substances cross cell membranes to be used by the body is known as ________.

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#Question id: 31048

#Unit 4. Cell Communication and Cell Signaling

Desensitization response of RTK helps to:

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#Question id: 862

#Unit 1. Molecules and their Interaction Relevant to Biology

Match the following

lysosomal protein degradation pathways	Found in
1. Nonselective	a-well-nourished cells	i-containing the pentapeptide Lys-Phe-Glu-Arg-Gln
2- Selective	b-starving cells

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#Question id: 1596

#Unit 4. Cell Communication and Cell Signaling

Which one of the following is function of Class III MHC genes?

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#Question id: 2396

#Unit 2. Cellular Organization

Which structure is common to plant and animal cells?