A well-tested explanation that explains a lot of observations isa. a controlled experiment. b.an inference. c.a hypothesis. d.a theory.

What field of science did harry hess study?

Rachel ate a piece of fruit and happened to drop the seeds in her backyard. after a few weeks, she saw a small plant with flowers growing in the backyard. which group does this plant belong to? a. angiosperms b. gymnosperms c. pteridophytes d. bryophytes e. chytrids

The negative impacts of nonnative species generally outweigh the positive impacts