Answer:
-It ensures life on Earth can exist.
-It is used by plants for photosynthesis.
-It is the main component of many biological components, including blood.
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Answer: 1000 nm
Explanation:
Bacteria are the type of biological cell. They constitute a large domain as they are found every where on the earth.
These are few micrometer in length which means 200-700nm . It depends on the type of the bacterial cell. The bacteria are the first organism that appeared on earth.
They are found in water, on land, desert, hydro thermal vent, snow et cetera. These are variable in shape.
B would be the closest thing to wht you are looking for.
the observable universe is estimated to contain 200 billion to two trillion galaxies.
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