Nieuwkoop center 

Dorsalmost vegetal cells of the blastula, which are capable of inducing the organizer dorsal vegetal cells can induce animal cells to become dorsal mesodermal tissue)

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#Id: 7383

#Unit 5. Developmental Biology

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#Id: 1471

#Unit 4. Cell Communication and Cell Signaling

The extracellular matrix is a dynamic, complex meshwork of proteins and polysaccharides that contributes to the structure and function of a tissue. 

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#Id: 5443

#Unit 7. System Physiology – Animal

The net movement of positive charge out of the cell due to K+ efflux at this time helps complete the process of repolarization

Relative refractory period

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#Id: 3869

#Unit 5. Developmental Biology

Newly activated genes are:

Adenylate cyclase A (ACA)
PKA
cAMP receptors (cARs)
Extracellular cAMP phosphodiesterase PdsA
An intracellular cAMP phosphodiesterase RegA

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#Id: 7978

#Unit 10. Ecological Principles

Thermal stratification