6. Allison ran a marathon for the first time. The next day she was stiff and store. Which of the
following is a reasonable explanation of why her mucles were sore?
a. Calvin Cycle
c. alcohol fermentation
b. Kreb's Cycle
d. lactic acid fermentation

Aprimary producer stores 9,000 kcal. in the energy pyramid, if a primary producer is consumed by a first-level consumer, and that first-level consumer is consumed by a second-level consumer and the second-level consumer is consumed by a third-level consumer, how much energy is stored by the third-level consumer from the primary producer? *