Question

energy enters an ecosystem as sunlight, is converted by plants into chemical energy, then eventually leaves as heat. which of these best describes energy flow through an ecosystem? completely random a dead - end pathway a one - way pathway through the ecosystem a triangular pathway

Explanation:

Energy enters an ecosystem as sunlight, is converted by plants into chemical energy, and then eventually leaves as heat. This shows that energy flows in one direction (from sunlight to plants to heat loss). It is not random (as there is a clear sequence), not a dead - end (as it moves through different forms and parts of the ecosystem before leaving), and not triangular (no indication of a triangular pattern). A one - way pathway through the ecosystem aligns with the description of energy entering, being transformed, and then leaving.

Answer:

a one - way pathway through the ecosystem