In a scientific experiment a statement that describes how to measure a particular variable or define a particular term is a(n)

Groups of organisms with low biotic potential, such as gray whales, that produce at most one offspring every other year a) are r-selected b) are k-selected c) are not subject to density-dependent limiting factors d) show the initial stages of the extinction process e) have escaped from the processes of natural selection and adaptation

What the theory that the sun goes around earth was replaced with the theory that earth goes around the sun this was an exaple of a

How does an angiosperm prevent self pollination