Herons are very large birds, and due to their intimidating size, they have very little predators. They have a varied diet and consume many different prey (fish, snakes, amphibians, and probably many other small animals). If the population of herons would decrease, the population of the other organisms living in the same environment would increase since they would have a greater chance at survival (since they are not being eaten by the herons)
A biological community with organisms interacting within their environment :)
The brain which, along with the spinal cord gathers informationand responds to changes in the environment.
Viens. :) Goodluck on your homework.
