_______________ features of the environment determine the abundance and distribution of living things.

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#Question id: 23864

#Unit 13. Methods in Biology

Which of the following problems with animal cloning might result in premature death of the clones?

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#Question id: 1876

#Unit 4. Cell Communication and Cell Signaling

What is the only HIV vaccine employed to have provided any evidence of efficacy?

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#Question id: 178

#Unit 1. Molecules and their Interaction Relevant to Biology

Given the pKa values of different acidic sites in cysteine, the principal ionic form which will never exist at any pH

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#Question id: 2708

#Unit 2. Cellular Organization

In strong acid and at elevated temperatures, for example perchloric acid (HClO4) at more than 100° C, nucleic acids tend to:

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#Question id: 11688

#Unit 7. System Physiology – Animal

During the 12-hr period preceding ovulation, which of the following is true?