Ecology is how nature works and flows, without it everything would be messed up, such as food chains and how people would be ranked on natures list.
Answer:
D. It has a strong influence on the ecosystem.A keystone species is a non-abundant species in an ecosystem. This species is important for the survival of the ...
Explanation:
It is true that dead zones in waterways can occur as the result of fertilizer runoff.
Where they have there effect on the tissues cells
Replication of the nucleus.
