The *heart* is the main organ of the circulatory system.
The circulatory system consists of three independent systems that work together: the heart (cardiovascular), lungs (pulmonary), and arteries, veins, coronary and portal vessels (systemic). The system is responsible for the flow of blood, nutrients, oxygen and other gases, and as well as hormones to and from cells.
Answer:
i think it would be cool!
Explanation:
Answer:
Letter d. Evola virus could not produce an exotoxin
Explanation:
Viruses are acellular particles carrying genetic material only for their reproduction. None of the viruses produces toxins, viruses atack by altering the normal function of the host cell. In the other hand, bacteria involve in alimentary infections like <em>E. coli, S. aureus</em> and <em>C. botulinum</em> produce exotoxins to attack the host cells to colonize and start an infection. The exotoxin is too potent that alter the function of the intestinal cells before the immune system recognize the bacteria.
You could make this absolutely anything. you could say you are going to have a monarchy, which is a queen or king. with education you could say, free, or starts at 11, or something that you would change in your schooling. doesn’t seem like it needs to be serious.
