Answer:
A. A biofilm
Explanation:
Biofilms have high bacterial density near to 10000000 CFU/ml bacteria. Due to such high densities, these biofilms becomes resistant to the antibiotics. These biofilms are basically community of microorganisms which stick itself to some kind of surface be it living or non-living. The bacteria’s which get attached to these biofilm and grow in an environment in which they possess both tolerance and resistance towards any bactericidal agent. Due to this functional mechanism of bacterias with in the biofilm, they become resistant to antibiotics.
Because nonrenewable resources are diminishing in number, they will eventually become scarce, posing a variety of life dangers in the future.
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What are Non-renewable resources?</h3>
Nonrenewable resources are defined as substances that are depleted faster than they can be replaced.
Renewable resources are abundant, and capturing them is a sign of new life on the horizon. It is necessary to decrease your reliance on nonrenewable resources. As we saw during the corona pandemic, most countries' economies are progressively deteriorating. It also has an impact on one's quality of life. As a result, it must be stated that the world population will decline in the twenty-second century.
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Explanation:
Enzymes are protein structures which speed up the rate of chemial reaction in human systems. They can be found in digestive system, liver etc. They are composed of active sites which are specific to a particular substrate.
Enzymes can only work in certain conditions. These conditions include; pH, temperature etc. Most enzymes in the human body work optimally at around 37°C, which means that at lower or higher temperature they might work sluggishly.
Likewise at certain pH range designed for the part of the body, they'll also work optimally. Example, enzymes in the intestines work best at 7.5 pH while enzymes in the stomach work best at pH 2 (pH of the stomach is much more acidic).
If these conditions in the environment are too high or too low, the enzyme loses its initial shape and hence, alters the shape of the active site.Consequently, the "specific" substrates cannot bind to it because the enzyme has become denatured.
Answer with change in the environment organisms change to adapt to the change in of the enviroment .