Free-living bacteria that are capable of fixing nitrogen are aerobic, facultative, or anaerobic. Some of the Aerobic nitrogen-fixing bacteria such as

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#Question id: 10517

#Unit 6. System Physiology – Plant

plant–insect herbivore interactions releases three types of hormone including—

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#Question id: 2065

#Unit 2. Cellular Organization

Which of the following are least likely to diffuse through the phospholipid bilayer of a cell membrane?

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#Question id: 2397

#Unit 2. Cellular Organization

Which of the following is present in a prokaryotic cell?

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#Question id: 12967

#Unit 10. Ecological Principles

Which of the following is the best explanation for why net primary productivity in terrestrial ecosystems tends to increase toward the tropics?

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#Question id: 1993

#Unit 4. Cell Communication and Cell Signaling

When antibodies attack antigens, clumping of the affected cells generally occurs. This is best explained by