It’s definitely b
hope this helps
Explanation:
so there blood can go in and out of there arteries and ventricles
Answer:
they can cause a lot of harm in human body
Explanation:
based on research, a virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism.
Bacteria are a type of biological cell. They constitute a large domain of prokaryotic microorganisms.
and lots more all can do a lot of damage to the human body they can even take someone's life.
Answer: Basically cells make up tissues, tissues make up organs, and organs make up organ systems.
Explanation: