They both, I guess you could say, interact with each other. If we didn't have gravity, we wouldn't have air pressure.
B.they are excreted and float freely around the body ,hunting infections
<span>Oxygenated blood is carried away from the heart through blood circulation veins. arteries. capillaries. the lungs.</span>
I believe the answer is (b.) <span>Cancer cells cause an autoimmune response which results in a build-up of cell matter.
This makes the autoimmune system perceive the cells as something dangerous, but since cancerous cells often not identified by the autoimmune cells properly, it often attacks the good cells (or its own tissues) instead which cause the life-threatening situation.</span>
Ecosystem
Explanation:
The relationship between the living and non-living things forms an ecosystem.
The non- living things like water, air, soil and other are required by the living organisms for leading their life cycle.
The living things forms the integral part of the natural cycling process of water, air and soil.
Thus this can be said that both living and non-living things are interdependent on each other and forms an ecosystem.
For example, if plants do not get water they will not be able to produce food also the transpiration will not occur which is an important part of the water cycle.