Cyanobcteria also fixes nitrogen under anaerobic conditions without  heterocyst where?

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#Question id: 11485

#Unit 7. System Physiology – Animal

In the odorant cells of mammals, specific odorants are detected by binding to _______

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#Question id: 20018

#Unit 12. Applied Biology

Which one of the following materials is an electronic element?

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#Question id: 3776

#Unit 3. Fundamental Processes

Telomere shortening puts a limit on the number of times a cell can divide. Research has shown that telomerase can extend the life span of cultured human cells. How might adding telomerase affect cellular aging?

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#Question id: 569

#Unit 1. Molecules and their Interaction Relevant to Biology

A small molecule that decreases the activity of an enzyme by binding to a site other than the catalytic site is termed a(n):

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#Question id: 27399

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is the structural parent of all sphingolipids.