Answer:
Cell deterioration
Explanation:
Once the cells first come in contact, they immediately create a cell shield that is composed of weaker cells, while the rest continue their work, the problem with this, is that their is a lack of cells to do work and the weaker cells are slowly dying and creating holes for the harmful chemicals to enter, as the cells deteriorate they clot together and create a lump in a final attempt, and it ends up creating deadly weight in the lungs.
Definition. noun, plural: (genetics, ecology) A group of organisms of one species that interbreed and live in the same place at the same time (e.g. deer population) (taxonomy) A low-level taxonomic rank. (statistics) A set of individuals, objects, or data from where a statistical sample can be drawn.
not really sure cuz this is biogeography and this not my field, but i think (C) is the correct answer (a biome may include multiple ecosystems that share a smaller climate).
Cnidarian is the answer for this question