Question

Theory of natural selection dwells on(a) role of environment in evolution(b) natural selection acting on favourable variations(c) changes in gene complex resulting in heritable variations(d) None of these

Answer 1

Hey mate here is your answer

(b) natural selection acting on favourable variations.

Hope it helped you

Answer 2

Answer:

According to the question, the answer is option "a) role of environment in evolution. The reason for the answer is, because evolution is the changes happen in an organism, in order to cope up with the natural environment.

Explanation:

There are many kinds of changes occurring in the climate, they are like changes of temperature, changes in the sea level, and many more things. In order to cope up with the changes, happening in the world, there are natural selections done, to add new feature in the organism, to survive in such situations.