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TLS Online TPP Program

#Question id: 1078

Which of the following statements about interferon is incorrect?

#Unit 4. Cell Communication and Cell Signaling

  1. It only works on a few specific types of virus.

  2. It makes cells resistant to viral infection.

  3. It is a species specific molecule.

  4. It does not directly inactivate viruses.

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TLS Online TPP Program

#Question id: 12576

#Unit 10. Ecological Principles

Estimates of current rates of extinction
TLS Online TPP Program

#Question id: 12577

#Unit 10. Ecological Principles

During  a  field  trip,  an  instructor  touched  a  moth  resting  on  a  tree  trunk.  The  moth  raised  its  forewings  to  reveal large eyespots on its hind wings. The instructor asked why the moth lifted its wings. One student answered that sensory  receptors  had  fired  and  triggered  a  neuronal  reflex  culminating  in  the  contraction  of  certain  muscles.  A second student responded that the behaviour might frighten predators. Which statement best describes these explanations?
TLS Online TPP Program

#Question id: 26892

#Unit 10. Ecological Principles

If a species has more genetic variation, it can adapt better
TLS Online TPP Program

#Question id: 26893

#Unit 10. Ecological Principles

Greater amphibian species diversity seen in
TLS Online TPP Program

#Question id: 26894

#Unit 10. Ecological Principles

Number of species of vertebrate animal (Global) in decreasing order
TLS Online TPP Program

#Question id: 26895

#Unit 10. Ecological Principles

Which factor is important in maintaining some grassland and shrub climax communities?