work can energy between objects and can cause a change in the form of energy.
a. transfer
b. change
c. increase
d. decrease

Energy derived from hot rocks and fluids beneath the earth’s surface is

After fertilization, which type of cellular division is responsible for the growth and development of a complex, multicellular organism?

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.