If the total amount of energy in the producer-level ecosystem is 40,000 kilocalories, how much energy is available for the first-level consumers? 4,000 kilocalories 400 kilocalories 40 kilocalories 4 kilocalories

Here is your

40,000-36,000=4,000

Your answer is
=4,000

Wetlands form where water and land meet. a lake with a wetland fringe can fill in with decayed plant and animal material to become a wet meadow. a pond can fill in to become a bog or fen. sediment can fill in a river marsh to become a swamp.flooding of coastal lowlands from rising sea levels has created broad coastal marshes that are protected from wave action by barrier islands or reefs. coastal wetlands also form when rivers deposit sediment as they reach the ocean. plants then take root and hold the soil firm against the forces of tides and waves.