Which best describes evolutionary theory?
a: it is based on the idea that all life is related.
b: it states that organisms have become less complex over time.
c: it is not supported by observation or experimentation.
d: it has been disproved several times since it was first proposed.

Which of the following best describes the relationship between glucose and complex molecules such as hormones?

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.