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:
Species form of a small cells under the water when the earth was contain some alive creature in it. It's a theory.
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Answer: c. water storage.
Savanna is a biome characterized by dry climatic conditions. This biome receives low rainfall as compared to grassland. Therefore, plants are adapted to prevent water loss. They have small sized leaves which prevent water loss by transpiration. Also, they have large tree trunk to store water thus help them to survive in drought conditions.