Because it is polar and it is to large to cross the membrane and because the concentration gradients are to strong so they have to be diffused.
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Explanation:
Biological hazards include microorganisms such as bacteria, viruses, yeasts, molds and parasites. Some of these are pathogens or may produce toxins. A pathogenic microorganism causes disease and can vary in the degree of severity
Answer:
From smallest to largest they are: Asteroid, planet, star, solar system, galaxy, and then universe
Explanation:
