In drosophila, the stem cells for sperm reside in a regulatory microenvironment called

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#Question id: 8288

#Unit 9. Diversity of Life Forms

Some beetles and flies have antler-like structures on their heads, much like male deer. The existence of antlers in beetle, fly, and deer species with strong male-male competition is an example of ________.

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#Question id: 32920

#Unit 2. Cellular Organization

If extracellular conditions become favorable or signals to grow and divide are introduced, cells in G0 progress through a commitment point in:

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#Question id: 11494

#Unit 2. Cellular Organization

How do aquaporins allow the passage of H2O but not H3O+?

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#Question id: 18882

#Unit 13. Methods in Biology

The resolving power of a microscope is determined by-

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#Question id: 33450

#Unit 1. Molecules and their Interaction Relevant to Biology

Identify the structure