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TLS Online TPP Program

#Question id: 12775

Field observation suggests that populations of a particular species of herbivorous mammal undergo cyclic fluctuations in  density  at  three-  to  five-year  intervals.  Which  of  the  following  represent  (a)  plausible  explanation(s)  of  these cycles?

#Unit 10. Ecological Principles
  1. Periodic crowding affects the endocrine system, resulting in increased aggressiveness. 
  2. Increases in population density lead to increased rates  of predation.
  3. Increases in rates of herbivory lead to changes in the nutritive value of plants used as food. 
  4. All of the above are plausible explanations of population cycling.
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TLS Online TPP Program

#Question id: 28695

#Unit 2. Cellular Organization

O-linked oligosaccharides is representing the attachment of glycoproteins to the hydroxyl (–OH) group in which amino acid residue?
TLS Online TPP Program

#Question id: 31249

#Unit 5. Developmental Biology

Sonic hedgehog in the ZPA activates Gremlin, which inhibits BMPs, thus promoting the:
TLS Online TPP Program

#Question id: 20399

#Unit 12. Applied Biology

In T-DNA where are these right border and left border sequence present?
TLS Online TPP Program

#Question id: 11703

#Unit 7. System Physiology – Animal

A female athlete who took testosterone-like steroids for several months stopped having normal menstrual cycles. What is the best explanation for this observation?
TLS Online TPP Program

#Question id: 32576

#Unit 2. Cellular Organization

Microtubules are generally nucleated from a specific intracellular location known as a microtubule-organizing center where: