A food chain follows one path of energy and materials between species. A food web is more complex and is a whole system of connected food chains. In a food web, organisms are placed into different trophic levels. ... Producers are the basic trophic level while top predators are the peak level.
The value because it could be worth a lot or a little
Secondary since plants/animals already lived there, but got killed/driven out of the area they lived/thrived in/on.
Answer:
Ecology is the study of how organisms interact with one another and with their physical environment.
Explanation:
