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lukranit [14]
3 years ago
10

Why is it important for scientists to use blind tests?

Biology
1 answer:
garri49 [273]3 years ago
8 0
What is blind test??
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The area of a square game board is 144 sq. in. What's the length of the sides of the board?
Andrew [12]
144 = x^2

Square root of 144 is 12, and therefore the lengths of the side of the game board are 12 inches
5 0
3 years ago
After a long time, a mature community is established and this community does not change unless it is
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<span>After a long time, a mature community is established and this community does not change unless it is disturbed.</span>
8 0
3 years ago
A young boy has been found, and police are trying to locate his family. They take a DNA sample from him and begin collecting DNA
GaryK [48]

Answer:

The correct answer would be Y-chromosome analysis.

Y-chromosome analysis is technique used to search the parental line of a boy on his father's side.

Gender of a person is determined by 23^{rd} chromosome in humans. XX is present in females and XY is present in males.

Mother always passes X chromosome to her progeny but father passes both X and Y chromosomes. If X is passed from the father then the offspring will be a girl and if Y is passed from the father then the offspring will be the son.

The sons (F₂) of this son (F₁) will also bear the same Y chromosome as that of grand father (P).

Thus, Y chromosome always passes from father to son and hence, Y-chromosome analysis can help in identification of father of this young boy.

3 0
3 years ago
Read 2 more answers
Based on the cell theory, which of the following is true?
larisa86 [58]

Answer:

D. The cell is the basic unit of living things

Explanation:

8 0
3 years ago
Which receives more isolation: Mars or Saturn?
Drupady [299]

Answer: Mars receives more insolation than Saturn.

Explanation:

Insolation is defined as the exposure to the Sun's rays.

Mars is the 4th planet in Our solar system and is near to the Sun.

Saturn is the 6th-planet in Our solar system and is far from the Sun.

Insolation is directly proportional to the planet's distance from the Sun.

So, the exposure of Sun's rays is more to the planet which lie close to the Sun.

As, Mars is close to the sun than Saturn. Hence, it will receive more insolation than Saturn.

5 0
4 years ago
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