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TLS Online TPP Program

#Question id: 10562

The direction and rate of water flow across a membrane are determined by

#Unit 6. System Physiology – Plant
  1. the sum of the concentration gradient of water and by the pressure gradient
  2. the movement of other small uncharged substances
  3. the concentration drops off as the distance, x, from the origin increases
  4. Solely by the concentration gradient of water or by the pressure gradient
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TLS Online TPP Program

#Question id: 29026

#Unit 11. Evolution and Behavior

Caused of behaviour are of two types proximate cause and ultimate cause. Given statements about these causes, which of the following is not true?
TLS Online TPP Program

#Question id: 12358

#Unit 10. Ecological Principles

Linked subpopulations are referred to as a. 
TLS Online TPP Program

#Question id: 1751

#Unit 4. Cell Communication and Cell Signaling

Which of the following is characteristically produced by the Th2 CD4 cells which provide help for antibody production, but not by Th1 cells?
TLS Online TPP Program

#Question id: 3890

#Unit 3. Fundamental Processes

Small signal molecules that regulate transcription are not known to:
TLS Online TPP Program

#Question id: 12470

#Unit 10. Ecological Principles

An ecologist recorded 12 white-tailed deer, Odocoileus virginianus, per square mile in one woodlot and 20 per square mile on another woodlot. What was the ecologist comparing?