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TLS Online TPP Program

#Question id: 9178

A fish swimming into an estuary from a river would have which of the following as its greatest physiological challenge?

#SCPH28 | Zoology
  1. The high water flow would make the fish expend more energy.
  2. The low oxygen content would give the fish difficulty in swimming aerobically.
  3. The temperature change would stress the fish by denaturing its proteins.
  4. The change in water solute content would challenge the osmotic balance of the fish.
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TLS Online TPP Program

#Question id: 4575

#I Life Science/ Life Sciences Group – I-V

Monkeys of South and Central America have prehensile tails, meaning that their tails can be used to grasp objects. The tails of African and Asian monkeys are not prehensile. Which discipline is most likely to provide an evolutionary explanation for how this difference in tails came about?
TLS Online TPP Program

#Question id: 11543

#SCPH28 | Zoology

Hormone X activates the cAMP second messenger system in its target cells. The greatest response by a target cell would come from ________.
TLS Online TPP Program

#Question id: 12931

#SCPH06 I Botany

Choose the incorrect statement about the Genome library.
TLS Online TPP Program

#Question id: 3279

#SCPH06 I Botany

Which two of the following have operated to increase divergence between mosquito fish populations on island?

a. improved gene flow

b. bottleneck effect

c. sexual selection

d. founder effect

e. natural selection
TLS Online TPP Program

#Question id: 1263

#SCPH28 | Zoology

The major classes of CAMs include

a. cadherins.    b. fibronectin.    c. Ig-superfamily CAMs.      d. P-selectins.