A plant absorbs 200 J/g of energy from the sun. A cow eats the plant and absorbs 20 J/g of energy. The cow is fed to a group of humans who absorb 2 J/g from the meat. What is the main reason the energy consumption decreases from one consumption to the next?
A Some energy is wasted as heat.Some energy is wasted as heat.
B The humans use some energy chewing.The humans use some energy chewing.
C The plant uses the energy to make sugar.The plant uses the energy to make sugar.
D The cow uses some energy to make proteins.
1 answer
A Some energy is wasted as heat.