Question

If the phytoplankton have 1,000 Kcal of energy, how many Kcal of energy do the crustaceans have?

(1 point)
Responses

1 Kcal
1 Kcal

10 Kcal
10 Kcal

1,000 Kcal
1,000 Kcal

100 Kcal

Answer 1

To determine how many Kcal of energy the crustaceans would have, we typically consider the concept of energy transfer in food chains. At each trophic level, energy is lost (usually about 90% is lost through metabolic processes), so the crustaceans would have significantly less energy than the phytoplankton.

If the phytoplankton have 1,000 Kcal, and assuming a typical 10% energy transfer efficiency:

Energy available to crustaceans = 10% of 1,000 Kcal = 100 Kcal.

Therefore, the answer is **100 Kcal**.