Some organisms have traits that help them survive in certain situations, while others of the same species do not. These differences happen by due to genetic variation through sexual reproduction.

i would have to say autosomal

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !

but there is no

i guess you forgot putting it.

i believe it would cause an increase of percipitation, though i could be wrong. so i would say b is the answer.