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alexgriva [62]
3 years ago
7

True or false: a diver suffering from nitrogen narcosis will always be aware that he is impaired.

Biology
1 answer:
coldgirl [10]3 years ago
3 0
The answer is False.  A diver suffering from nitrogen narcosis will not be aware that he is impaired.  Nitrogen Narcosis is a drowsy state induced by breathing air under higher than atmospheric pressure, for example, in deep-sea diving.  <span>The deeper a diver goes, the greater the narcosis.</span>
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An energy pyramid shows the amount of_______<br> available at each feeding level in an ecosystem
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Answer:

Energy

Explanation:

An energy pyramid shows the amount of energy available at each feeding level in an ecosystem.

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3 years ago
Define mutagen and describe how mutagens are used in genetic research.
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Mutagenic agents are widely used in the fields of biotechnology, genetic engineering, medicine and agroindustry. This is because these agents have helped in the advancement and development of new technological tools.  

In genetic research some bacteria and viruses are used by agribusiness companies to obtain transgenic beings. These mutagenic (biological) agents act as vectors of laboratory-created genes that will insert these genes into an organism to be modified. It could be, for example, a gene that will improve maize resistance against a pest. Thanks to mutagenic agents, this genetic information can be passed on to the organism, in this case, the plant.

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3 years ago
Fragmenting one large park or preserve into many small parks with human habitation in between them is most likely to lead to whi
barxatty [35]

Answer:

The correct answer is a. Reduction in species diversity

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This separates species member from each other which reduces the gene flow between that which can lead to inbreeding depression in a species and extinction of species can occur.  

Cutting trees and human activities can alter the environment negatively which can cause extinction of some species that reduce species diversity. So the correct answer is a.

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