True or False: White blood cells can leave the blood vessels and travel into your tissues. Why would this
be an advantage?
Hurry please.. due tomorrow!

Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.

How do you date a sample of rock that you suspect as being one of the earliest on earth

What element is able to combine with itself and hydrogen to form large molecules ?