Answer:
B)Specialists Generalists
Explanation:
As described, a niche is the functional role that a species plays in the community. It refers to how a species will respond to the distribution of resources. Example, a species can be a predator or a prey
Therefore, specialists will refer to species that have very specific resource requirement
Whereas those that have broad niches(able to use wide array of resources) are known as Generalists.
All this combined = rise in fatalities which = less reproduction = lower population
The lungs belong to the respiratory.