If a cell contains a nucleus, it must be a(n)

plant cell
eukaryotic cell
animal cell
prokaryotic cell

In complete sentences describe the energy flow between the sun, the earth, and space.

How did the research presented in the article affect scientists' understanding of the evolution of eukaryotes

Astudent is looking through a microscope at some cells of an onion root tip. many of these cells are undergoing division since the root tip grows quickly and requires more cells. which cell most recently underwent metaphase? w x y z