Answer:
Nitrifying bacteria such as Nitrosomonas play an important role in providing nitrogen to plants and limiting carbon dioxide fixation. They are found widely distributed in soil or water, where there are large amounts of ammonia, such as lakes or streams into which treated and untreated sewage is pumped.
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Enzymes are catalysts, which means that they make chemical reactions go faster, but are not changed by the reaction. For example, digestive enzymes cause food that you eat to be broken down much faster than would occur without them, but they are not broken down in the reaction they are speeding up.
Research has shown that people who have a chronic disease or have low energy levels also have lower enzyme content in their blood, urine, and tissues. While there is clearly a direct relationship between disease states and a person's enzyme levels, only recently has the NATURE of that relationship been better understood. Researchers began to question if a person's enzyme levels were low because they were sick or were they sick because their enzyme levels were low. The researchers found something surprising.
<span>A person may not have a low enzyme content because he is sick or old, but instead, the reason a person may be sick or old is because of low enzyme content.</span>
Answer:
During late adulthood the skin continues to lose elasticity, reaction time slows further,
muscle strength and mobility diminishes ,hearing and vision decline and the immune system weakens.
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Explanation:
Answer:
it is because a plant cell is surrounded by a cell wall
Answer:
C. Genes that are close to each other on a chromosome are often inherited together.
