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.
Blood Flow Through The Cardiac Valves
Oldowan tools are simple flake tools struck from a core.
Energy changes in reactions.
Flow aloft and cyclone migration
The oceans continue to absorb most of the excess energy trapped by greenhouse gases
Energy Balance Is Achieved When Energy (Calories) In Equals Energy (Calories) Out