What term is used to discribe the variety and variability of life on earth

(drag each tile to the correct location.) categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. - a tentative statement used to guide scientific investigations. - makes predictions about future events. - can be tested by many independent researchers. - based on observations of natural phenomena. - a well-established, highly reliable explanation.

How many years would it take the atlantic ocean to grow 500 centimeters? show your work.

The smallest biological units that can evolve are