In primary neurulation, 

cells surrounding the neural plate direct the neural plate cells to proliferate, invaginate into the body, and separate from the surface ectoderm to form an underlying hollow tube.

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#Id: 6615

#Unit 7. System Physiology – Animal

The first 14 days of the menstrual cycle involve follicular development (follicular phase).

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#Id: 9177

#Unit 11. Evolution and Behavior

Adaptation has costly side effects

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#Id: 8073

#Unit 13. Methods in Biology

In a chiral medium the molar absorptivity of LCP and RCP light are different so they will be absorbed by the medium in different amounts. 

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#Id: 9756

#Unit 6. System Physiology – Plant

JA initiates biosynthesis of defense proteins as a-amylase inhibitors. Most of these proteins interfere with the herbivore digestive system.

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#Id: 4846

#Unit 1. Molecules and their Interaction Relevant to Biology