Natural selection was Darwin’s brilliant hypothesis, independently conceived by Wallace, that accounts for adaptations, features that appear “designed” to fit organisms to their environment.

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#Id: 400

#Unit 2. Cellular Organization

MacroH2A is nearly three times larger than conventional H2A, and contains a large C-terminal tail that is not related to any other histone.

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#Id: 2662

#Unit 7. System Physiology – Animal

The tubular fluid that leaves the thick ascending limb has a lower Na+ concentration and a lower osmolarity than blood.

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#Id: 3775

#Unit 1. Molecules and their Interaction Relevant to Biology

The electrons revolve in orbits around the nucleus.

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#Id: 10467

#Unit 4. Cell Communication and Cell Signaling

Sporadic retinoblastoma, inherit two normal RB alleles, each of which has undergone a LOF somatic mutation in a single retinal cell

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#Id: 3061

#Unit 10. Ecological Principles

The constant c is often thought of as the number of species per unit area. 

It is affected by many factors.