Answer:
im pretty sure it would be a trait
Answer:
B
Explanation:
I would say this because the pulmonary circulation only transports deoxygenated blood. And this blood gets transported to the lungs so the lungs can absorb oxygen and release carbon dioxide. I am not sure about this one though. This is what I think.
Because some of them are immune and only works for one thing in the system
Answer:
1. B. parasitism
2. C. parasitism, predation, mutualism
Explanation:
Controlled group does not change
