In a food chain, on average, of the food is burned for energy and exhaled and the energy becomes waste heat; the rest becomes part of the organisms' flesh. A. 10% B. 90% C. 50% D. 1%
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- The starting point of all food chain are A. Plants B. Microorganisms C. Animals D. HumansA producer creates 1000 grams of carbohydrates. According to the 10% rule of energy transfer, how much of the original 1000 grams of carbohydrates would be lost as heat by a secondary consumer? A. 9 grams B. 80 grams C. 100 grams D. 110 grams4) Explain why eating celery is considered ‘negative calories’ or negative net energy. Be sure to include the scientific term for the use of the energy within the celery. (short answer please)
- An organic nutrient essential to an organism’s metabolism thatcannot be synthesized itself is termed a/ana. trace element b. micronutrient c. growth factor d. mineralApproximately how much of the energy taken in by a consumer is used to make more biomass? Group of answer choices a. 80% b. 100% c. 60% d. 0% e. 10%Read each questions and their corresponding choices carefully. Write the correct answer. 1A food web is_____food chains. A.composed of B. An energetic C. A simple D. A decaying 2. In the food web, which of following receives the greatest amount of energy? A.Primary consumers B.Tertiary consumers C.Secondary consumers D.Decompose 3. What happens to the stored energy as the consumer is getting away from the producer? A. It Increases B. It does not change C. It decreases D. It remains the same.
- Most of the food produced in industrial agriculture is A. eaten by the workers B. sold for a profit C. eaten by the farmers D. unable to be eatenWhich of the following substances are required by all organisms?a. organic nutrients b. inorganic nutrients c. growth factors d. oxygen gasThe movement of mineral nutrients through organisms and their environment is called a ________ cycle. a. biological b. bioaccumulation c. biogeochemical d. biochemical
- Choose the best answer from the choices. 1. The length of the food chain is limited because a. The amount of biomass at the top is not sufficient to support another level b. The number of organisms in each level is few c. The type of organism in each level is few d. The number of organisms in each level is not changingThe quantity of available nutrients ____________- from the lower levels ofthe energy pyramid to the higher ones.a. increases b. decreases c. remains stable d. cyclesCatabolism is a form of metabolism in which __ molecules are converted into __ molecules. a. large, small b. small, largec. amino acid, protein d. food, storage