Question

On a global scale, energy _______ ecosystems whereas chemical elements __________ ecosystems.

Answer 1

Answer:

c. flows through... are recycled in

Explanation:

In an ecosystem, energy gotten from the sun by plants  flows through the ecosystem from one trophic level to another, as the energy in is transformed from one form to another via nutrition.  

On the other hand, chemical elements in the form of nutrients are recycled and made available to primary producers when decomposers in the ecosystem to break down organic matter. During decomposition, energy is released. Several nutrient recycling process have feedback mechanisms that ensures chemical elements are recycled back into the ecosystem as they are being used up by organisms.