Which process increase genetic diversity and variation within species?
a.)meiosis
b.)mitosis
c.)photosynthesis
d.)bacterial fission

Meiosis is the type of process that helps increase genetic diversity and variation within a species.

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".

answer; both surfaces of the membrane are nonpermeable