Answer:
A: The energy in most ecosystems flows through the food chain. In terrestrial ecosystems and most marine ecosystems, the energy flow starts in green plants that harvest some of the sun’s energy. The plants are then consumed by animals, bacteria and other creatures, which are themselves eaten by other creatures.
Explanation:
Answer:
Benthos are organisms that live
Examples:
Amphora
Cylindrotheca
Diploneis
Euglena
Fallacia
Gyrosigma
Navicula
Nitzschia
Plagiotropis
Staurophora
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The kidneys make two main hormones, vitamin D and erythropoietin. Vitamin D is essential for a number of different functions in the body. Most of the vitamin D that is in the blood is inactive and it is modified by the kidney and other tissues to activate it.
