There are many things that can affect ocean currents. Particularly wind. Changes in temperature with air currents and tides affect it as well.
Answer:
can be used as an energy source by organisms.
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Chloroplasts. They are only in green plant cells, so, unless you are a green plant, humans and flatworms would not contain them.
Biotic factors are anything in a ecosystem that is living, was living, or is going to live.
From this we can conclude that the biotic factors are remains of dead organisms and flora and fauna.
Temperature and minerals in the soil are abiotic, meaning they will never live.
