TLS Online TPP Program

#Question id: 11121


Which of the following statements concerning the mechanoreceptive receptor potential is/are true?

#7. System Physiology – Animal
  1. Increase in stimulus energy results in an increase in receptor potential
  2. When receptor potential rises above a certain threshold action potentials will appear in the neuron attached the receptor
  3. Number of action potentials generated in the neuron attached to the receptor is proportional to receptor potential
  4. All of the above are correct
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TLS Online TPP Program

#Question id: 11379

#10. Ecological Principles

Which of the following is NOT a prediction arising out of Wilson-MacArthur's -Theory of Island Biogeography?

TLS Online TPP Program

#Question id: 11380

#10. Ecological Principles

Which of the following is/are NOT valid explanation(s) for the observed pattern of species richness?

TLS Online TPP Program

#Question id: 11381

#10. Ecological Principles

Which of the following is decreasing order of NPP per unit area of different ecosystem?

TLS Online TPP Program

#Question id: 11384

#10. Ecological Principles

Two islands, P and Q, are similar in habitat and other features. They are 100 and 200 km2 in size respectively, but have the same number of species. Which of the following statements can independently explain this observation?

(i) P is closer to the mainland than Q

(ii) P is further away from the mainland than Q

(iii) P has higher speciation rates than Q

(iv) P has lower speciation rates than Q

TLS Online TPP Program

#Question id: 11385

#10. Ecological Principles

Which of the following biomes is correctly paired with the description of its climate?

A) savanna-low temperature, precipitation uniform during the year

B) tundra-long summers, mild winters

C) Taiga-relatively short growing season, Low precipitation

D) temperate grasslands-relatively warm winters, most rainfall in summer

E) tropical forests-nearly constant day length and temperature

TLS Online TPP Program

#Question id: 11403

#10. Ecological Principles

Several categories of risk of species extinction have been defined. A species can be determined as critical endangered if there is considered to be