Why is it wiser (ecologically and economically) to eat a diet with more plants in it than one with more meat?
What will be an ideal response?
Energy is lost as it is transferred from one trophic level to the next. Only 10% of the energy in a given food source is available to an organism in the next trophic level. There is more energy in food material closer to the primary production than at the carnivore end of the food web. There is more available energy in plant material than in a comparable amount of meat material. Plant matter is also cheaper and easier to store and ship to areas where food is scarce, a definite advantage over shipping animal products. Increasing world population levels would seem to require that we eat more plants and fewer animals.
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because
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Which of the following occurs in situations where more than one hormone produces the same effects at the target cell and their combined effects are amplified?
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a. red algae b. green algae c. dino?agellates d. yellow-green algae
Upon witnessing a robber hold up a convenience store at gunpoint, which of the following reactions would your nervous system initiate?
A) increased heartbeat B) constriction of airways C) constriction of pupils D) decreased heartbeat