TLS Online TPP Program

#Question id: 12570


Extinction is a natural phenomenon. It is estimated that 99% of all species that ever lived are now extinct. Why then do we say that we are now in a biodiversity crisis?

#Section 5: Applied Ecology & Evolution
  1. Humans are ethically responsible for protecting endangered species.
  2. Scientists have finally identified most of the species on earth and are thus able to Quantify the number of species becoming extinct.
  3. The current rate of extinction is high and human activities threaten biodiversity at all levels.
  4. Humans  have  greater  medical  needs  than  at  any  other  time  in  history,  and  many  potential  medicinal compounds are being lost as plant species become extinct.
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TLS Online TPP Program

#Question id: 10635

#Section 1: Ecology

Three important biological parameters – generation time, per capita growth rate (r) and clutch size are a function of the organism‟s body size. Which of the curves (a) or (b) represents the correct relation of each of the parameters to body size?



TLS Online TPP Program

#Question id: 10640

#Section 1: Ecology

Given below is a graphical representation of plant life histories based on Grime's model in which disturbance and competition are the important factors


Which of the following options correctly represents A, B and C, respectively in the figure above?


TLS Online TPP Program

#Question id: 10642

#Section 1: Ecology

Which curve best describes survivorship in a songbirds and marine crustacean that molts respectively?

 


TLS Online TPP Program

#Question id: 10643

#Section 1: Ecology

Population of ground squirrels has an annual per capita birth rate of 0.06 and an annual per capita death rate of 0.02) Estimate the number of individuals added to (or lost from) a population of 1,000 individuals in one year.

TLS Online TPP Program

#Question id: 10644

#Section 1: Ecology

There is a species with following feature Good colonizer, reach sexual maturity rapidly, Short-lived, low investment in care for the young

Which of the following above feature showing growth pattern and survival ship curve

TLS Online TPP Program

#Question id: 10645

#Section 1: Ecology

The logistic equation above is used to describe the rate of change of a population, N, with time, t, where r is the intrinsic rate of increase and K is the carrying capacity. dn/dt is isoclines when