2. Which statement best describes an index fossil? A. They are the remains of animals that existed for a long period of time.
B. Animals that existed in one part of the world.
C. Animals that existed for a short period of time in geologic history.
D. Animals that are different in age than the rock layer they were found.

What type of competition exsist between two species. turtles and fish

Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time

When a doggo starts to pace around in the same line for a hand full of days. what would that mean?