What connection do all living things have with eachother

Which animal group is the largest and contains more species from all the other living groups combined? is it mammals or

(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 does natural selection change thephenotypes within a population over time?