Which of the following is NOT a condition required for populations to increase?

A

good medicine

B

constant sanitation

C

constant food

D

more meat in diet

Rank the three variables in terms of how strongly they affect the "species" composition of the bacterial communities. place the variable with the weakest effect on the left and the variable with the strongest effect on the right.

Genetic disorders can result when sister chromatids fail to seperate properly. during what phase is this problem most likely to occur?

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables