The important role of the atmosphere is to supply oxygen, water, carbon dioxide and nutrients. It also protects all living things from extreme temperatures and radiation (protects us from harmful solar rays).
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Photochemical smog is a mixture of pollutants that are formed when nitrogen oxides and volatile organic compounds (VOCs) react to sunlight, creating a brown haze above cities.
Explanation:
Your answer would be The microorganism was unicellular and had a well-defined nucleus.
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Sphingolipids
Explanation:
They are derived from aliphatic amino alcohol sphingosine and functions in protecting the nerves in the central nervous system. Sphingolipids includes group of lipids called glycolipids and sphingomyelin. Just like phospholipids they have polar heads and two non-polar tails together with proteins, forms a myelin sheath. They insulate the nerves and causes quick transmission of electrical impulse amongst organs contributing to normal bodily functions.
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Medications can be tested on the cancer culture before being injected into the patient.
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