Answer the following questions/statements (each number should have a response):
Using the food chain below, match the organism with its trophic level. (U3L3)
____________ - Primary consumer
____________ - Producer
____________ - Tertiary consumer
____________ - Secondary consumer
Why is the sun the primary source of energy in most ecosystems? (U3L3)
Approximately how much energy is passed from one trophic level to the next? (U3L3)
How much energy would be passed from a producer containing 220,000 kilocalories of energy to the primary consumer? (U3L3)
Why are there fewer organisms at the top of the food chain? (U3L3)
_____________ and ___________ have important roles in the cycling of matter and energy in an ecosystem. The products of one are the reactants of the other. (U3L3)
Explain why both plants and animals need mitochondria. (U3L3)
