Practice Questions

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

Humans are ethically responsible for protecting endangered species.
Scientists have finally identified most of the species on earth and are thus able to Quantify the number of species becoming extinct.
The current rate of extinction is high and human activities threaten biodiversity at all levels.
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: 12344

#Section 1: Ecology

The concept of punctuated equilibrium refers to

TLS Online TPP Program

#Question id: 4592

#Section 2: Evolution

Which of the following statements describe the effect of evolution on a population?

TLS Online TPP Program

#Question id: 10633

#Section 2: Evolution

Following some characteristic feature of r selected species

A. late maturity

B. Provision of parental care

C. High mortality during early stages of life

D. large clutch size

What is the above combination is correct?

TLS Online TPP Program

#Question id: 10671

#Section 2: Evolution

The principle of competitive exclusion states that

TLS Online TPP Program

#Question id: 12442

#Section 1: Ecology

At low population densities, dispersers