Which describes uniformitarianism?
a.
the rates of geologic processes slow down with time.
b.
geologic processes are different over time.
c.
geologic processes operating now are the same as those that operated in the past.
d.
the rates of geologic change increase with time.

Environmental differences within ecosystems are generally caused by

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons

What do we call an individual that has inherited two identical alleles for the same trait? a.homozygous b.heterozygous c.monozzygous