Answer: (D)
Explanation: biotic factors depend among abiotic factors, meaning that living things need non-living things in order to survive. That also means that biotic factors everywhere including the surrounding area need to be thought of in this sense so that they are able to survive in the environment they are in.
Answer:
The answer is A.
Explanation:
Adaptive immunity recognizes antigens of viruses.
Answer:
Controls blood flow to regulate body temp.
Explanation:
Circulatory system deals with flow/transport of blood
Euglena are like all other cells because they<span> grow and reproduce. They obtain nutrients by taking in other microorganisms an make their own food by using the energy from sunlight.</span>
