If producers receive 1,000 kcal of energy from the sun, what would the tertiaryconsumers in that energy pyramid receive?

A. 100 000 kcal
B. 100 kcal
C.10 kcal
D. 1 kcal

Which of the following could be placed in the first level of an energy pyramid?

A. goldfish
B. mushroom
C. mango tree
D. tadpole

Which of the following cannot be a reason why 100% energy is never available tothe next trophic level?

A. Some energy is loss as heat
B. Certain amount of energy is eaten by predators
C. A portion of energy is eliminated as waste through excretion.
D. Some energy is loss when organisms die a natural death.

When an organism eats another one, how many percent of stored energy istransferred to it?

A. 100%
B. 50%
C. 10%
D. 90%

In marine ecosystems, the bottom of the pyramid is usually occupied by?

A.bottom-dwellers
B. whales and sharks
C. small fishes
D. phytoplankton​