Biology Past Questions and Answers

The complex relationship between the members of a community and their physical environment is known as ____________

The specific role of a species within íts environment is known as its ____________

Which of the following soil fertility improvement methods will have the most negative effect on the ecosystem if not controlled?

Organisms in an ecosystem are usually grouped according to their trophic level into ____________

In the pyramid of energy illustrated above, the organism with the least amount of transferred energy is ____________