LS2B - Cycles of Matter and Energy Transfer

Paul Anderson explains Life Science Core Idea 2B, focusing on matter and energy transfer in ecosystems. The video covers the basics of organisms and their environments, the recycling of matter through processes like composting, and the flow of energy in food webs. It progresses from elementary to high school concepts, including ecological pyramids and the roles of photosynthesis and cellular respiration in energy transfer.

How does energy flow through a food web?

What role do decomposers play in the ecosystem?

What is the 10% rule in ecological pyramids?