A scientist was taking water samples, but forgot to label them! Sample A was taken in the Gulf of Mexico, Sample B was taken at the mouth of the Mississippi River and Sample C was taken in the Mississippi River. Explain how he could determine which sample is which.

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

What enzyme is most important for dna replication and why?

What drives the atp synthase reactions that produce atp