Since the alligator population decreased, this means there are less predators for the gar. Less predators for the gar mean the gar population will increase. More gar means more predators for the crabs, and therefore decrease the crab population. More gar also means more competition for the diving duck in terms of animals that eat crabs, and thus the diving duck population will also decrease.

Why is the federal reserve managed under the oversight of the federal government? the fed is responsible for printing and coining money.the fed is responsible for collecting income taxes.the fed is responsible for the government’s money.the fed is responsible for paying off government debt.(the first option isn't correct i tried that one)edit: the answer is the fed is responsible for the government’s money.