Linnaeus proposed that were creatures that were alike in minute details of body structure, and he gave them two-word names.

The circles, or orbits, for electrons are called energy levels. each level can hold only a certain number of electrons. add electrons to each level until you can't add any more. how many electrons can each level hold?

Inbox me girls for s.exy chat and hard fu.c.king

What is the membrane that sheath of schwann cell containing cytoplasm and nucleus that encloses myelin