Grain is eaten by cows, and cows are eaten by humans. If the ecological transfer

Question

Grain is eaten by cows, and cows are eaten by humans. If the ecological transfer efficiency between each trophic level is 10%, how much grain is required to produce 70 kg of human biomass? 70,000 kg 7,000 kg 700,000 700 kg One would expect to find the greatest amount of biomass in a grassland or forest community in which of the following groups? primary consumers primary producers secondary consumers tertiary consumers Which of the following can cause a severe environmental problem through biological magnification? ozone hole PCBs smog acid precipitation According to your textbook, the extinction of the dinosaurs about 65 million years ago was likely caused by a super volcano. True False

Explanation / Answer

22. 700kg

23. Primary consumers

24.PCBs

25. True

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