Which of the statements below best describes the relationship between elements of an ecosystem? a. elements of ecosystems are mutually dependent on each other. b. there is no relationship between elements within an ecosystem. c. abiotic elements are dependent on each other, while biotic elements are not dependent each other. d. a cause and effect relationship is limited to abiotic elements only.

I think the correct answer from the choices listed above is option A. The relationship between elements of an ecosystem is that the elements of ecosystems are mutually dependent on each other. Each of the living organisms and the non living things in an ecosystem are relying on each other to survive. It needs to keep a certain balance between all of them.

D. differentiation, later, fertilization