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TLS Online TPP Program

#Question id: 11543

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

#7. System Physiology – Animal
  1. applying a molecule of hormone X to the extracellular fluid surrounding the cell
  2. injecting a molecule of hormone X into the cytoplasm of the cell
  3. applying a molecule of cAMP to the extracellular fluid surrounding the cell
  4. injecting a molecule of activated, cAMP-dependent protein kinase into the cytoplasm of the cell
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TLS Online TPP Program

#Question id: 10554

#6. System Physiology – Plant

Transpiration is an important means of dissipating the heat input from sunlight, Heat dissipates because the water molecules that escape into the atmosphere
TLS Online TPP Program

#Question id: 3616

#8. Inheritance Biology

If the parents are AO and BO genotypes for the ABO blood group, their children could include which of the following genotypes?
TLS Online TPP Program

#Question id: 8710

#9. Diversity of Life Forms

A phylogenetic tree constructed using sequence differences in mitochondrial DNA would be most valid for discerning the evolutionary relatedness of ________.
TLS Online TPP Program

#Question id: 10739

#10. Ecological Principles

 A rat that is "maze-dull"
TLS Online TPP Program

#Question id: 9278

#6. System Physiology – Plant

Bilin pigments are open-chain tetrapyrroles found in antenna structures known as phycobilisomes that occur in