LESSON 4.2 Review
Q. KEY QUESTIONS
1. Energy is said to flow in a "one-way” stream
through an ecosystem. In your own words,
describe what that means.

Energy is said to flow in a "one-way stream" through an ecosystem. In your own words, describe what that means. Energy is not recycled. Energy enters an ecosystem and flows through a food chain, but it is not reused, it is lost as heat.

Hope the answer helps:)

b - the respond is innate and varies over time.

good luck!