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.
A Mitochondrion Converts Energy from Fuel Molecules into ATP
1-16 The Sun’s Daily Path and the Energy It Deposits Here
The polymerase chain reaction (PCR).
A severe food shortage occurred in the Netherlands during the “Hunger Winter” of 1944–1945.
World Total Energy Consumption by Fuel Type
Global Energy Flow