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3 years ago

I don't know any idea how to submit answer

1 answer:

8 0

Sometimes some questions don't have a submit button. This happened to me and I know that you just have to move onto another question. Then when you find one that has an answer button you type in you answer and press the answer button for points.

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Which of these is a method of obtaining petroleum?

Ad libitum [116K]

The answer is surface mining

4 0

3 years ago

How healthy foods affect human blood pressure

Thepotemich [5.8K]

Answer:

increasing your intake of fresh fruits and vegetables, whole grains and low-fat dairy products may help reduce blood pressure. For a more structured nutritional plan based on these guidelines, you may want to become familiar with the DASH (Dietary Approaches to Stop Hypertension) Diet. This diet is based on a major study conducted by the American National Heart, Lung, and Blood Institute that examined different diets and their effects on blood pressure.

Explanation:

Eating a diet rich in whole grains, fruits, vegetables and low-fat dairy products and low in saturated fat and cholesterol can lower high blood pressure by up to 11 mm Hg .

8 0

2 years ago

The zebra population is exploding in the savannah. At the same time, populations of many small animals that live in the Red Gras

Darya [45]

This would be because the grass that they eat are in the area that the zebra population is booming in.

3 0

3 years ago

Read 2 more answers

Cystic fibrosis is a genetic disorder in homozygous recessives that causes death during the teenage years. If 9 in 10,000 newbor

padilas [110]

Answer:

f(A1) = 0.9700, f(A2) = 0.0300

Explanation:

The frequency of homozygous recessive genotype of children is

$\frac{9}{10000} \\= 0.0009$

As per Hardy weinberg's equation, frequency of homozygous recessive genotype is represented by

$q^2$

Here $q^2$ $= 0.0009$

Thus, frequency of recessive allele would be

$\sqrt{q^2}\\ = \sqrt{0.0009}\\ = 0.03$

as per first law of Hardy weinberg

$p+q = 1\\p = 1- 0.03\\p = 0.97$

Hence, option C is correct

5 0

3 years ago

All cells and many subcellular structures are surrounded by a membrane. Assuming a typical membrane to be about 8 nm wide, how m

Viktor [21]

The typical light microscope at its maximum magnification power has a resolution of 200 nm. The light microscope is able to view and distinguish between two lines or points that are no less than 200 nm apart. Since our membrane of interest is 8 nm apart, it won't be visible under the light microscope. Several such membranes are needed to lined side by side to make the viewing possible. The number of membranes should be, $\frac{200}{8}$ = 25.

7 0

3 years ago

I don't know any idea how to submit answer​

I don't know any idea how to submit answer