the producer in an energy pyramid contains about 1,000 kcal of energy. about how much of this energy is used…

the producer in an energy pyramid contains about 1,000 kcal of energy. about how much of this energy is used by the producer or lost as heat to the environment?\n10 kcal\n90 kcal\n100 kcal\n900 kcal

the producer in an energy pyramid contains about 1,000 kcal of energy. about how much of this energy is used by the producer or lost as heat to the environment?\n10 kcal\n90 kcal\n100 kcal\n900 kcal

Answer

Explanation:

Step1: Recall energy - transfer rule

In an energy pyramid, about 10% of the energy is passed on to the next trophic level, and the rest is used by the producer or lost as heat.

Step2: Calculate the energy used or lost

If the producer has 1000 kcal of energy, the energy passed on to the next level is 10% of 1000 kcal, which is $0.1\times1000 = 100$ kcal. The energy used by the producer or lost as heat is $1000 - 100=900$ kcal.

Answer:

900 kcal