Directional selection favors individuals at one extreme of a phenotypic distribution that have greater reproductive success in a particular environment.

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#Id: 5750

#Unit 10. Ecological Principles

Dominant species - One that has a large effect in a community because of its abundance or large biomass.

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#Id: 5299

#Unit 7. System Physiology – Animal

Period of relaxation called diastole, during which the heart fills with blood A period of contraction called systole

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#Id: 943

#Unit 5. Developmental Biology

Chemotaxis 

sperms are attracted toward eggs of their species by following a gradient of a chemical secreted by the egg.

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#Id: 1193

#Unit 7. System Physiology – Animal

The responses of the bipolar cells are either hyperpolarizing or depolarizing potential

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#Id: 10419

#Unit 4. Cell Communication and Cell Signaling

Epithelial-to-mesenchymal transition (EMT) 

play a crucial role in metastasis