10 points! What does the principle of uniformitarianism tell us about the past?

A. The past is the key to the future.
B. The past has no bearing on the future or present.
C. Processes at work in the past were very different than those at work today.
D. Processes at work in the past are the same as those at work today.

Migration is a. the movement of organisms from a native location to a foreign location b. the movement of organisms from a foreign location to a native location the movement of organisms from their water supply to their food supply d. the seasonal movement of organisms between locations c. select the best answer from above

Aragonite shells of clams, snails, or scleractinian corals may be preserved unaltered in cenozoic deposits, but they are generally dissolved or recrystallized in older deposits. true or false

They live on every continent except antarctica