Q:

The amount of blood filtered together by both the kidneys in a 70 kg adult male human in a minute is

A) 1100 ml	B) 100 ml
C) 1500 ml	D) 500 ml

Answer & Explanation Answer: A) 1100 ml

Explanation:

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Filed Under: Biology
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Q:

Molecular clocks are based on the idea that _____.

A) On average neutral mutations arise at a constant rate	B) Directional selection occurs at a constant rate
C) Mutations occur once every generation	D) Molecules resonate at a certain frequency that can be measured

Answer & Explanation Answer: C) Mutations occur once every generation

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Filed Under: Biology
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Q:

Which one of the following statements is not correct?

A) The response of the ear to sound of increasing intensity is approximately logarithmic.	B) The sensitivity of the human ear does not vary with the frequency of the sound.
C) When two or more waves traverse the same medium, the displacement of any element of the medium is the algebraic sum of the displacements due to each wave.	D) Longitudinal waves can travel in all media-solids, liquids and gases.

Answer & Explanation Answer: B) The sensitivity of the human ear does not vary with the frequency of the sound.

Explanation:

The human ear can respond to minute pressure variations inthe air if they are in the audible frequency range, roughly 20 Hz -20 kHz. In fact, tests conducted show an increased sensitivity in the 3000 Hz range which is the optimal amplification frequency in the human ear. So, the sensitivity of the human ear varies with the frequency of the sound.

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Filed Under: Physics
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Q:

What was United Kingdom's rank in 2016 Human Development Index published by the United Nations Development Programme?

A) 4	B) 16
C) 64	D) 256

Answer & Explanation Answer: B) 16

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Filed Under: General Awareness
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Q:

Pidurutalagala or Mount Pedro is the highest mountain peak of which of the following countries?

A) South Africa	B) Panama
C) Sri Lanka	D) Cambodia

Answer & Explanation Answer: C) Sri Lanka

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Q:

Who was the first chairman of ISRO?

A) Kasturirangan	B) Vikram Sarabhai
C) Homi K. Bhabha	D) C.V. Raman

Answer & Explanation Answer: B) Vikram Sarabhai

Explanation:

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Q:

______ of species is a reflection of their evolutionary relationships.

A) Characteristics	B) Adaptation
C) Illustration	D) Classification

Answer & Explanation Answer: D) Classification

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Filed Under: General Science
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Q:

Who was the first indian Chief Election Commissioner?

A) Morarji Desai	B) Sukumar Sen
C) Sardar Patel	D) V.S Ramadevi

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