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Q:

Which best describes somatic mutations?

A) transmitted to progeny	B) not transmitted to progeny
C) Can't be identified	D) None of the above

Answer & Explanation Answer: A) transmitted to progeny

Explanation:

The best example for somatic mutation would be cancer, familial cancer (which transmits through gametes to the next generation) are not so common while sporadic cancer is seen the most where body cells of a particular area goes through mutations for a number of years and becomes cancerous, but it is not transmitted to next generation.

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Filed Under: Biology
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Q:

Parallel construction means that you

A) give both sides of the argument in your essay.	B) begin each paragraph of your essay in the same way.
C) use the same grammatical construction in all similar headings throughout an outline.	D) repeat the first paragraph of your essay as the last paragraph.

Answer & Explanation Answer: C) use the same grammatical construction in all similar headings throughout an outline.

Explanation:

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Filed Under: Alphabet Test
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Q:

What does 'M' stand for in chemistry?

Answer

'M' is used as a unit of molarity and stands for mole per litre i.e, number of moles of solute per liter of solution.

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Q:

Which of these is a starting point for primary succession?

A) a surface exposed by a retreating glacier	B) a neglected yard
C) abandoned farmland	D) an abandoned city

Answer & Explanation Answer: A) a surface exposed by a retreating glacier

Explanation:

Primary succession is the orderly and predictable series of events through which a stable ecosystem forms in a previously uninhabited region. Primary succession occurs in regions characterized by the absence of soil and living organisms.

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Filed Under: General Science
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Q:

Which solution is most concentrated?

A) 6 g of solute in 10 ml of solution	B) 20.5 g of solute in 50 ml of solution
C) 30 g of solute in 120 ml of solution	D) 2.6 g of solute in 2 ml of solution

Answer & Explanation Answer: D) 2.6 g of solute in 2 ml of solution

Explanation:

A concentrated solution will contain the most solute molecules per solvent molecules.

Here in the given options,

1) 6/10 = 0.6

2) 20.5/50 = 0.41

3) 30/120 = 0.25

4) 2.6/2 = 1.3

Hence, option D) is most concentrated.

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Filed Under: Chemistry
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Q:

Which statement regarding the mammalian heart is correct?

A) Blood is pumped from the heart via the atria.	B) Oxygen-loaded blood moves only through the right side of the heart.
C) When the right atrium contracts, it forces blood into the left atrium.	D) In the adult heart, blood in the right chambers of the heart cannot enter the left chambers without passing through the lungs.

Answer & Explanation Answer: D) In the adult heart, blood in the right chambers of the heart cannot enter the left chambers without passing through the lungs.

Explanation:

In the adult heart, blood in the right chambers of the heart cannot enter the left chambers without passing through the lungs is correct regarding mammalian heart.

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Filed Under: Biology
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Q:

Can you spot the missing number?

number_puzzle11531377158.jpg image

A) 3	B) 6
C) Both A & B	D) None of the above

Answer & Explanation Answer: C) Both A & B

Explanation:

The given number puzzle can be soved in two ways.

Logic 1 ::

Row 1 - 2 x 3 = 6 , 6 x 3 = 18

Row 2 - 4 x 5 = 20 , 20 x 5 = 100

Row 3 - 3 x 7 = 21 , 21 x 7 = 147

Hence, the missing number could be 3.

Logic 2 ::

Row 1 - 6 x (2+1) = 18

Row 2 - 20 x (4+1) = 100

Row 3 - 21 x (6+1) = 147

Hence, the missing number could be 6.

Therefore, 3 or 6 is the right answer.

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Filed Under: Number Puzzles
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Q:

Most bacteria reproduce by

A) budding	B) binary fission
C) fragmentation	D) mitosis

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