As cells enter the primitive streak, they undergo an epithelial-to-mesenchymal transformation.

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#Id: 5291

#Unit 7. System Physiology – Animal

Diastolic pressure is the lowest arterial pressure in the arteries during ventricular relaxation when no blood is being ejected from the left ventricle.

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#Id: 9625

#Unit 4. Cell Communication and Cell Signaling

Unbound receptors are internalized at a relatively slow rate, on average once every 30 minutes, and are recycled rapidly to the plasma membrane so there is little reduction in the total number of surface receptors. 

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#Id: 9802

#Unit 6. System Physiology – Plant

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#Id: 2955

#Unit 3. Fundamental Processes

ORC was first found in S. cerevisiae (where it may be called scORC),but similar complexes have now been characterized in Schizosaccharomyces pombe (spORC), Drosophila (DmORC ), and Xenopus (XIORC).

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#Id: 9387

#Unit 11. Evolution and Behavior

Stimuli
Anything that can trigger a physical or Behavioral change