Answer:
I think the answer is D: Infrographic that shows carbon moving through ecosystems
When a top predator is removed from an ecosystem, a series knock-on effects are felt throughout all the levels in a food web, as each level is regulated by the one above it. This is known as a trophic cascade. The results of these trophic cascades can lead to an ecosystem being completely transformed. The impacts trickle down through each level, upsetting the ecological balance by altering numbers of different animal species, until the effects are finally felt by the vegetation.
Electromagnetic radiation that travels in waves
A biotic factor is all of the students in the classroom.
Hope this helps!!
