Question

Which of the following have been linked to the dramatic global decline of amphibian populations? Select one: a. drainage of wetlands b. pollutants c. infectious diseases d. global climate warming e. all of these choices are correct

Answer 1

The correct answer is: e.

Explanation:

• Decline in the global population of amphibians is due to multiple reasons which include:

1. A moist ecosystem is necessary for amphibians especially for the purpose of their reproduction. The drainage of the wetlands deprives them of their habitat.
2. Pollutants adversely affects the survival of the gametes, tadpoles or the adult amphibians by acting as toxic agents and inhibiting their normal metabolic function.
3. Infectious diseases often cause their death resulting their population to decline.
4. Global climate warming affects their normal metabolic growth and development and hence causes their population to decline.