Many marine organisms depend on upwelling to bring nutrients to the surface. how might el nino affect a fisherman's way of life? < < read less

How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.

Environmental impacts on evolution : mastery test

Which set of terms best describes a community of miners who live out in the countryside of west virginia and use specialized geographical equipment to analyze the composition of rocks