KEY QUESTIONS 1. Energy is said to flow in a "one-way" stream through an ecosystem. In your own words, describe what that means. NOTEBOOK 2. What are the three types of ecological pyramids? Explain...

Extracted text: KEY QUESTIONS 1. Energy is said to flow in a "one-way" stream through an ecosystem. In your own words, describe what that means. NOTEBOOK 2. What are the three types of ecological pyramids? Explain how each type of pyramid models energy and matter in ecosystems. I NOTEBOOK