The distribution of most phenotypic variation in most species may be described as:
a. being specifically geared to environmental conditions
b. a continuum of gradual change
c. being in discrete clusters
d. completely random with little or no regularity

i think it’s c but i might be wrong. if i am let me know! have a good rest of your day as well!

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.