If the flow of energy in an arctic ecosystem goes through a simple food chain, perhaps involving humans, starting from phytoplankton to zooplankton to fish to seals to polar bears, then which of the following could be true?
A) Polar bears can provide more food for humans than seals can.
B) The total biomass of the fish is lower than that of the seals.
C) Seal meat probably contains the highest concentrations of fat-soluble toxins.
D) Seal populations are larger than fish populations.
E) The fish can potentially provide more food for humans than the seal meat can.

Question

Quizplus · Accepted Answer

In a food chain, energy is lost at each trophic level. Fish are lower on the food chain than seals, so they have more biomass and energy available, potentially providing more food for humans.

If the Flow of Energy in an Arctic Ecosystem Goes