Fish is good to lowering blood pressure because contain vitamin D, and this hormone-like vitamin has properties that can lower blood pressure.
The answer is C. Photosynthesis.
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The system is called Taxonomy and was made by Swedish botanist Carlous Linnaeus
D: Where two continental plates are colliding, creating a convergent boundary. One plate slips under the other because of convection currents in the mantle.
1. Exchange materials with its environment efficently