Question

what are the reasons for variations in bio form through the world?

Answer 1

Answer:

Major causes of variation include mutations, gene flow, and sexual reproduction. DNA mutation causes genetic variation by altering the genes of individuals in a population. Gene flow leads to genetic variation as new individuals with different gene combinations migrate into a population.

Answer 2

Answer:

the reason for the variations in biodiversity all over the world is that every animal cannot survive the same situation.

for e.g: humans cannot live in the ice cold polar regions whereas polar bears can.this shows that every organism has its own adaptations which makes it unique and makes its live in a suitable place which is best for it.

the rugged topography,low lying mountains,etc are also some reasons