If the Flow of Energy in an Arctic Ecosystem Goes

Multiple Choice

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) Seal populations are larger than fish populations.
B) Fish can potentially provide more food for humans than seal meat.
C) Polar bears can provide more food for humans than seals can.
D) The total biomass of the fish is lower than that of the seals.
E) Seal meat probably contains the lowest concentrations of fat- soluble toxins.