Answer:
An association between two organisms in which one benefits and the other derives neither benefit nor harm.
Explanation:
Answer:
Mutualism, commensalism, predation,and paratism
The answer is
B. every living thing has different types of DNA
Answer:srry but the big bang has been now proven wrong a false theory of what happened to start the earth...(And if you where wondering I am a Christian..) good luck with your questions... AND I BELIEVE YOUR ANSWER IS .D... YES IT IS .D.
It is called a double circulatory system because blood passes through the heart twice per circuit. The right pump sends deoxygenated blood to the lungs where it becomes oxygenated and returns back to the heart.