The answer is <span>c. mutualism.
</span>
<span>Mutualism is a relationship between two
different species in which both species have benefits. In this example, ants benefit because they feed on aphids' wastes while aphids benefit because ants provide them protection.
</span>
<span>Commensalism is a relationship between two
species in which only one of them has benefit, and the other one is not
affected. Parasitism is a relationship between two species in which only
one of them has benefit, and the other one is harmed.</span><span>
</span>
Photosynthesising primary producers require sunlight. Therefore, in the ocean, phytoplankton would be concentrated within the surface layers of the ocean where the sunlight penetrates. Phytoplankton support a wide range of marine life: zooplankton feed on phytoplankton, which in turn support fish and so on.
Phagocytes refer to the procedure by which some kind of living cells known as phagocytes engulfs or ingest other cells or particles. The phagocyte may be a free-living one-celled species, like an amoeba, or one of the body cells, like a white blood cell.
In higher species, phagocytosis is mainly a defensive mechanism against infection and invasion of the body by the antigens, that is, foreign particles.
Thus, phagocytosis is illustrated by most types of white blood cells ingesting bacteria, viruses, and other foreign substances.
Answer:
B. Urban communities tend to have a higher population than rural communities.
Explanation:
I just took the test on ed.
