List the two things that Mendel's principles of genetics required in order to be true?

Select the correct answer from each drop-down menu. in an experiment, dr. travis examined the effects of calcium intake on osteoporosis, a condition that causes an increased risk of bone fractures. the amount of calcium is variable. the risk of bone fractures .

What is responsible for the uneven heating between the poles and the equator on any given day

Ecology can best be described as the study of what