D because these are all nonliving things that are vital to plant growth (photosynthesis)
D because commensalism is when one organism benefits (barnacle) and one is unaffected (whale)
A because mutualism is when both species benefit
1. Organ
2. Nucleus
3. Diffusion
Answer:
A physical activity not related to a persons job is identified as working out.
<span>During digestion, the blood picks up nutrients absorbed through the gi tract and transports them to the <u>different organ systems of the body.</u> The oxygen and nutrient-rich blood can be transported throughout the body by the different blood vessels that surround it. Without blood circulating through the body, it would be hard for the body to maintain its homeostasis and survive for long.</span>
According to my dictionary, the best word that matches this definition would be ''mutation'' since it changes its form by turning or transforming into something else or duplicating.