Answer:
because that way protons can be compartmentalized and form a gradient.
The example of a biotic factor is the shrimp population in a bay. Biotic factors are living factors that affect organisms in an ecosystem. The biotic factors includes the producers or autotrophs, consumers or heterotrophs, and decomposer. Abiotic factors on the other hand are the non-living factors that influence an ecosystem; they include, sunlight, soil, humidity, etc
Oceanic crust is <em>denser than continental crust</em>. It is also younger than continental crust as continental is the older of the two crusts.
Oceanic crust is mostly made of igneous rocks (like basalt) , partially comprised of iron and magnesium.
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All bacteria and viruses are unicellular, Euglena, Amoeba, Paramoecium are unicellular.
I hoped I helped!
