Cells of the nervous system which supports the neurons by producing myelin sheaths and attaching neurons to blood vessels are called:

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million

Yeast cells reproduce quickly by budding. this is a form of reproduction so all the yeast cells a) sexual; vary b) asexual; vary c) asexual; are identical d) sexual; differ from the parents submit hint structures and functions of cells cellular reproduction