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Vera_Pavlovna [14]
3 years ago
9

Explain the ph scale. Include the range for acids, bases and neutral substances

Biology
1 answer:
Lesechka [4]3 years ago
3 0
The pH scale ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic. A pH greater than 7 is basic.
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Kryger [21]

Answer:

In areas of Africa where malaria is prevalent the number of sickle cell cases remains consistent generation after generation. ---- support the hypothesis.

In Canada the incident of sickle cell anemia has been increasing in the population. -----  contradicts the hypothesis.

Explanation:

In areas of Africa where malaria is widespread the number of sickle cell cases remains consistent generation after generation while on the other hand, In Canada the incident of sickle cell anemia are lower in the population because of environmental condition is not good for increase in malarial disease. In Africa, the environment is suitable for the mosquitoes that causes malaria so there is high increase of sickle cell anemia in the population.

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2 years ago
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allochka39001 [22]

Answer:

They probably use aerobic respiration.

Explanation:

A travel distance of 11.500 kilometers in 9 days covered by flying surely requires a lot of energy.

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In sum, aerobic respiration is much more efficient to generate energy than fermentation, so it's probably the main metabolism of the flight muscles in bar-tailed godwits.

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3 years ago
The chemical digestion of food is dependent on a whole range of hydrolase enzymes produced mostly by the cells lining the gut as
UNO [17]
The enzyme that is present within the stomach and the lining of the muscular gland, would function optimally in high H+ concentration and would require much HCl needed for an appropriate pH environment to function

This would be pepsin, I believe.


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1-propyl-2,3-methylimidazolium perfluorobutanesulfonate/ACIL00169 can be provided in Alfa Chemistry. We are dedicated to provide our customers the best products and services. http://www.alfa-chemistry.com/1-propyl-2-3-methylimidazolium-perfluorobutanesulfonate-item-296352.htm

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5. What are the four bases found in DNA?
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Answer:

Attached to each sugar is one of four bases--adenine (A), cytosine (C), guanine (G), or thymine (T). The two strands are held together by hydrogen bonds between the bases, with adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.

Explanation:

5 0
3 years ago
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