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alexgriva [62]
3 years ago
5

Compare and contrast point and nonpoint source pollution and provide an example of each.

Biology
1 answer:
Debora [2.8K]3 years ago
6 0

Point is a direct source of pollution. Landfills, gasoline, and chemical plants would be examples of point source pollution. Non-point can be vehicles.

So they both pollute, but point comes straight from something. Non-point is pollution going off from something.

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please match the following nutritional types with the statements that most accurately describe them, to test your understanding
svetlana [45]

Autotroph: a creature that obtains its carbon from inorganic carbon dioxide

Chemotroph: an organism that obtains energy from chemical substances-Heterotroph: an organism that must receive its carbon in an organic form

Phototroph: an organism that produces energy from sunlight

The term "primary nutritional groups" refers to a category of creatures that are separated into subcategories based on the sources of carbon and energy that they require for survival, growth, and reproduction. Carbon can come from organic or inorganic sources, and energy can be derived from either light or chemical molecules. ATP, carbs, or proteins are used to store the liberated energy as potential energy. The energy is eventually put to use for activities essential to life, like movement, growth, and reproduction.

learn more about Heterotroph here

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1 year ago
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3 years ago
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Does the distribution of bases in sea urchin DNA and salmon DNA follow Chargaff’s rules? a) Yes, because the %A approximately eq
MArishka [77]

Answer:

A. Yes, because the %A approximately equals the %T and the %G approximately equals the %C in both species.

Explanation:

According to Chargaff's rule, in all cellular DNAs, the number of adenosine residues (A) is equal to the number of thymidine residues (T). And the number of guanosine residues (G) is equal to the number of cytidine residues (C). Therefore, the sum of the purine residues equals the sum of the pyrimidine residues (A+ G= C+ T). It is based on the fact that a purine base always pairs with a pyrimidine base in a double helix DNA.

Chargaff’s rule is followed in all the double-helical DNA molecules irrespective of the species. In DNAs of sea urchin and salmon, the percentage of adenine is equal to that of the thymine and the percentage of guanine is equal to that of the cytosine. Therefore, Chargaff's rule is followed.

3 0
3 years ago
9. A local scientist has studied the population distribution of a species of snail that lives on
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Which is a FALSE statement about genetic disorders or diseases that are caused by errors that occur during meiosis?
telo118 [61]

Answer:

Option C. A person inherits chromosomes from just one parent.

Explanation:

Genetic disorders or diseases that are caused by errors that occur during meiosis is called down syndrome. It is also known as trisomy 21. In this disease the person inherits one extra pair of chromosomes from one of the parent i. e. Father or mother.

6 0
3 years ago
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