Are tiny air sacs through which oxygen and carbon dioxide pass in and out of the bloodstream.

Um yea this might be weird to say up here but me and my girl got freaky and shoved a bottle up my but thole and now is stuck. so what do i do?

Group of genes that encode molecules found in all body cells, creating a biochemical “fingerprint” that serves as the “id” for cells so that they are marked as “self” a) deoxyribonucleic acid (dna) b) entry inhibitors c) major histocompatibility complex (mhc) d) non-nucleoside reverse transcription inhibitors (nnrtis)

Bella is reporting the pulse (heartbeats per minute) of a patient. which symbol is most useful for her? a. ’ b. “ c. # d. / e. ^