Autotrophs are make their own food. For example plants are autotrophs and they get energy from photosynthesis. They convert solar energy into chemical energy. Heterotrophs gain energy and get their food from consuming other organisms. Autotrophs release oxygen into the atmosphere and heterotrophs breathe in that oxygen to grow and develop. The heterotrophs at the top of the food chain consume the ones at the bottom and the cycle continues
the right answer is B- energy from magma at divergent boundaries are cleaner
The benthic organisms are known to get benefited from the presence of the zebra mussels.
Hence, the correct answer is benefit from the presence of zebra mussels.
The zebra mussels gets colonised and increase the complexity of the substartes. the faeces and the pseudofaeces released by the zebra mussels act as a food resource for many macroinvertebrates, including the benthic organism.
The zebra mussels feeds on phytoplanktons and increase the water clarity, it also changes the nutrient content, which provide an additional advantage for the survival of the benthic organisms.
the answer is "a" at least i think