A picture of which of the following structures belongs in the box above?

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

The activity of the modern sample is 1.10 bq . how long does that measurement take?

In which layer do organisms on earth love?