Speciation is the divergence of two populations from a common ancestor. how does it contribute to biological diversity? (a) speciation increases biological diversity.(b) speciation has no effect on biological diversity.(c) speciation decreases biological diversity.

Option (A)

Explanation: The rate of speciation is directly proportional to the amount of biological diversity. This means that, the more is the speciation, the more will be its diversity.

Speciation is a process that helps us in understanding the evolutionary trend of any species and re-establish the various biodiversities existing on earth.

Thus the correct answer is option (A).

correct answer: understand the different control methods available

integrated pest management is an strategy that is based on the ecosystem and try to prevent the pest and the damage caused by them by applying combination of technique like habitat manipulation, biological control and use of resistant varieties.

the main aim of the integrated pest management is not to completely eliminate the pest but to strengthen the ecosystem so that conditions are favorable for plants and unfavorable for pests.