The correct answer is <span>D. circulatory, respiratory, nervous, endocrine
The other systems mentioned in the first three examples don't maintain oxygen levels at that body strain level.</span>
Phagocytes are cells that protect the body by ingesting harmful foreign particles, bacteria, and dead or dying cells.
<span>to sue the government in cases of unjust laws to persuade legislators to share the scientists' views on issues to make honest, ethical presentations of data to represent the interests of the business community</span>
Answer: Mutualism
Explanation:
Mutualism is a symbiotic relationship in which both interacting species receives the benefit for togetherness.
In the given situation, the birds are receiving food in the form of ticks and the rhinoceros are receiving protection against the predatory blood sucking ticks.
