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Q:

Sponges are most accurately described as

A) marine predators B) chemoautrophs
C) filter feeders D) freshwater scavengers
 
Answer & Explanation Answer: C) filter feeders

Explanation:
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Filed Under: Biology
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Q:

Complete the number series?

11, 12.2, 14.6, 18.2, ?

A) 21.8 B) 23
C) 24.6 D) 25
 
Answer & Explanation Answer: B) 23

Explanation:

The given number series 11, 12.2, 14.6, 18.2, ?

11

11 + 1.2 = 12.2

12.2 + 2.4 = 14.6

14.6 + 3.6 = 18.2

18.2 + 4.8 = 23

 

Hence, the next number in the given number series is 23.

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Q:

Find the odd man out from the given series?

8, 18, 56, 232, 1165 

A) 18 B) 56
C) 232 D) 1165
 
Answer & Explanation Answer: B) 56

Explanation:

The given number series 8, 18, 56, 232, 1165 

8

8 x 2 + 2 = 18

18 x 3 + 3 = 57 (not 56)

57 x 4 + 4 = 232

232 x 5 + 5 = 1165

 

Hence, the odd man in the given series is 56.

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Filed Under: Odd Man Out
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Q:

Most organic compounds contain carbon and

A) Hydrogen B) Nitrogen
C) Potassium D) All of the above
 
Answer & Explanation Answer: A) Hydrogen

Explanation:

Most organic compounds contain carbon and hydrogen.

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Filed Under: General Science
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Q:

What unit is used to measure weighted average atomic mass?

A) amu B) gram/mole
C) Both A & B D) 1/mole
 
Answer & Explanation Answer: C) Both A & B

Explanation:

The unit which is used to measure weighted average atomic mass is Atomic Mass Unit (amu).

The amu or gram/mole can also be used for this measure.

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Filed Under: Chemistry
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Q:

Which best describes the nucleus of an atom?

A) It is the densest part of the atom B) It has neutrons
C) It has protons D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

The nucleus of an atom is the densest part of an atom. It contains the protons and neutrons of an atom.

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Filed Under: Chemistry
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Q:

What is the term for classifying and grouping organisms?

A) Homology B) Taxonomy
C) Biology D) Zeology
 
Answer & Explanation Answer: B) Taxonomy

Explanation:

The term for classifying and grouping organisms is Taxonomy. It is the science of defining and naming groups of biological organisms on the basis of shared characteristics.

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Filed Under: General Science
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Q:

Which was true of Pullman porters in the 1920s?

A) The porters could not start a union because it was illegal. B) The porters needed a union because they were not treated well.
C) The porters did not need a union because they made good money. D) The porters could not start a union because they were African American.
 
Answer & Explanation Answer: B) The porters needed a union because they were not treated well.

Explanation:
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Filed Under: World History
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