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Mariulka [41]
3 years ago
14

A visual defect caused by an irregular curvature of the cornea or lens, resulting in blurred vision:

Biology
1 answer:
Mamont248 [21]3 years ago
5 0

Answer:

D. astigmatism

Explanation:

Astigmatism is an imperfection in the curvature of the eye. Most of the focusing power in the eye occurs along the frontal surface called the cornea. The next structure involved in focusing is the lens, which lies behind the iris inside the eye.

The ideal cornea has a symmetrically curved surface, like a basketball. Astigmatism is caused by a cornea or lens with a curve that is not symmetrical. As a result, people with astigmatism may have distorted or blurred vision.

Astigmatism can occur in families and in most cases is associated with other refractive problems such as nearsightedness or farsightedness. It may also increase over time due to age.

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You perform an experiment in which you take 16 pots of strawberry plants and give half of them 1 gm of ammonium nitrate per lite
alexandr1967 [171]

Answer:

Height of the plants

Explanation:

Dependent variable is the effect that is being measured in an experiment while independent variable is the cause of that effect. Hence, dependent variable is not controlled or changed.  

According to this question, height of the plants is the effect of the amount of ammonium nitrate and light. Hence, it defines the output or end result of the variation that is being studied.

5 0
3 years ago
Study the information within the table below and then answer the following question.
adelina 88 [10]

Answer:

1:1

Explanation:

Purines: adenine (A), guanine (G)

Pyrimidines: thymine (T), cytosine (C)

Totals:

\left[\begin{array}{cccc}A&T&G&C\\82.4&80.8&69.1&68.4\\\end{array}\right]

\left[\begin{array}{cc}Purines&Pyrimidines\\151.5&149.2\\≈150&≈150\\ \end{array}\right]

8 0
4 years ago
A disaccharide is formed when two monosaccharides join. Which of the following is a disaccharide?
kaheart [24]

The correct answer is: Glucose and fructose

Glucose and fructose are monosaccharaides that are joined by glycosidic linkage to form sucrose. This disaccharaides are produced naturally in plants but for human production it is is extracted, and refined, from sugar cane.

Lactose and maltose are also disaccharides. Lactose is composed of galactose and glucose, while maltose from consists of two units of glucose that are joined with an α(1→4) glycosidic bond.

4 0
3 years ago
Explain why trees in temperate rainforest and tropical rainforest don’t lose their leaves. I need help plz someone help me !!!!
olga55 [171]

They don't lose their leaves because of the humidity in the forest.

5 0
4 years ago
If a person has Type A blood which blood types can receive this persons blood?
Taya2010 [7]

Answer:

You can receive A and O blood types.

Explanation:

5 0
4 years ago
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