The diversity within the wild bird species in the given figure can best explained by which process

The diversity within the wild bird species in Fig. 7.32 can be explained by which process.

Assertion: Genetic diversity within species increases with the increase in habitat variations. Reason : It is essential for adaptation to varied environments.

Which one has higher diversity? (A) Three bird species, four birds of one and one bird each of other two types (B) Six birds of three species, each with two individuals (C) Two animals each of three species belonging to different taxonomic groups (D) Both B and C

The distribution of species diversity on earth may be best described as