- Choose the correct pathway for carbon dioxide as it moves from a blood cell to the
outside of the body.

A)alveolus → bronchus → trachea →pharynx nostrils

B)bronchus → trachea → pharynx →alveolus → nostrils

C)pharynx → alveolus -trachea →bronchus- nostrils

D)trachea → pharynx → bronchus →
alveolus → nostrils

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)

Grain products are a good source of .

If you’re experiencing conflict with a friend or family member the first step you should take is to