Contact
Explanation:
Pathogens can be spread a few ways depending on what type. They could be spread through skin contact, airborne particles, body fluids, contact with feces, and touching a surface touched by an infected person.
Answer:
A. Vena cava
Explanation:
The aorta can't be the answer because it is the largest artery in the human body and it carries oxygenated blood. The pulmonary artery carries deoxygenated blood into the lungs for oxygenation. The pulmonary veins transfer oxygenated blood from the lungs to the heart. And lastly, the vena cava is the right answer and it returns deoxygenated blood back into the heart.
The steps of cellular respiration is different when it is anaerobic respiration compared to aerobic respiration. The main difference is because aerobic respiration uses oxygen and anaerobic uses other elements but the other steps are pretty <span>similar. :)
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Drugs that have chemicals that influence perceptions, moods consciousness or behavior