Why did the author refer to bone marrow cells as ""drugstore cells""?

True or false mucous membranes destroy pathogens on the outer body surface, at body openings.

Frankie is having difficulty developing a friendship with histeammate curtis. whenever frankie invites curtis to hangout with him at the park, curtis always says that he's busy.what is most likely preventing a healthy relationship fromforming? a)the boys are not being generous with their time andeffort.b)the boys are not communicating.c)both boys are too busy.d)the boys are on different teams.

What is known about the role that insulin plays in the processing of blood sugar?