The energy of incident solar radiation reaching the surface of the earth declines toward the poles from its maximum in equatorial regions. One cause of this phenomenon is greater absorption of solar energy by the earth's atmosphere at high latitudes. Why is this?

TLS Online TPP Program

#Question id: 4707

#Unit 11. Evolution and Behavior

For which one of the following observations were both Lamarck's hypothesis and Darwin's hypothesis in complete agreement?

TLS Online TPP Program

#Question id: 998

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following statements apply (applies) to the B oxidation of fatty acids?

1.  The process takes place in the cytosol of mammalian cells.

2.  Carbon atoms are removed from the acyl chain one at a time.

3.  Before oxidation, fatty acids must be converted to their CoA derivatives.

4.  NADP+ is the electron acceptor.

5.  The products of B oxidation can directly enter the citric acid cycle for further oxidation.

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#Question id: 12924

#Unit 13. Methods in Biology

In order to quantify unknown DNA templates, a standard dilution is prepared using DNA of known concentration. As the DNA accumulates during the early exponential phase of the reaction,an arbitrary point is taken where each of the diluted DNA samples cross. This is termed as_____

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#Question id: 27003

#Unit 10. Ecological Principles

In competitive species N1 and N2, four individuals of N2 use the same resource as one individual of N1. According to the conversion factor, what is the value of the per capita competitive effect of N2 on N1(α) and per capita effect of N1 on N2 ( β) respectively?

TLS Online TPP Program

#Question id: 12319

#Unit 10. Ecological Principles

Fred and Joe, two unrelated, mature male gorillas, encounter one another. Fred is courting a female. Fred grunts as Joe comes near. As Joe continues to advance, Fred begins drumming (pounding his chest) and bares his teeth. Joe then rolls on the ground on his back, gets up, and quickly leaves. This behavioural pattern is repeated several times during the mating season. Choose the most specific behavior described by this example