Darwin analogized the effects of evolution as the above-ground portion of a many-branched tree, with extant species being the tips of the twigs. The common ancestor of two species is most analogous to which anatomical tree part?

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#Question id: 4270

#Unit 3. Fundamental Processes

RNA helicase contains characteristic

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#Question id: 10487

#Unit 6. System Physiology – Plant

During the patch clamp experiments measure outward electric current in picoamps, pA at the plasma membrane of a guard cell protoplast stimulated by two points A and B showing in the graph.

What is A and B

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#Question id: 301

#Unit 1. Molecules and their Interaction Relevant to Biology

What explains the very high melting and boiling point of water?

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#Question id: 31025

#Unit 4. Cell Communication and Cell Signaling

During GPCR signalling, the slower the rate of GTP hydrolysis:

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#Question id: 11174

#Unit 10. Ecological Principles

Why might a peahen choose to mate with a peacock with a long, gaudy tail?