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TLS Online TPP Program

#Question id: 9251

Which of the following is responsible for the differences in summer and winter temperature stratification of deep temperate zone lakes?

#Unit 9. Diversity of Life Forms

Water is most dense at 4°C.
Oxygen is most abundant in deeper waters.
Winter ice sinks in the summer.
Stratification is caused by a thermocline

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TLS Online TPP Program

#Question id: 10678

#Unit 10. Ecological Principles

In competitive species N1 and N2, four individuals of N2 use the same resource as one individuals of N1. According conversion factor, what is the value of 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: 16122

#Unit 7. System Physiology – Animal

Fever is an abnormal elevation of body temperature. Following statements are regarding to the cellular mechanism of fever.

A. Pyrogens produce fever by increasing the hypothalamic set-point temperature.

B. the mechanism of pyrogen action is increased production of interleukin-1 (IL-1) in phagocytic cells.

C. IL-1 then acts on the anterior hypothalamus to increase local production of prostaglandins, which increase the set-point temperature.

D. IL-1 then acts on the posterior hypothalamus to increase local production of prostaglandins, which increase the set-point temperature.

E. IL-1 then acts on the posterior hypothalamus to increase local production of prostaglandins, which decrease the set-point temperature.

Which of the following combination is correct?

TLS Online TPP Program

#Question id: 8954