Questions

Q:

Organisms use bio-catalyst to break down complex substances into simpler substances. These bio-catalysts are called ______.

A) enzymes B) hormones
C) vitamins D) No option is correct
 
Answer & Explanation Answer: A) enzymes

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Filed Under: General Science
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Q:

Four words are given, out of which only one word is spelt correctly. Choose the correctly spelt word and click the button corresponding to it.

A) Acommodate B) Accommodate
C) Acomodate D) Accomodate
 
Answer & Explanation Answer: B) Accommodate

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Filed Under: English
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Q:

Select the word with the correct spelling.

A) terains B) priestly
C) fereted D) ablasion
 
Answer & Explanation Answer: B) priestly

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Q:

Gastrulation is the process that directly forms the

A) Ectoderm B) Endoderm
C) Mesoderm D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Gastrulation rearranges the cells of the blastula and ultimately forms the three germ layers of the embryo. The primary layers that will form all of the major body and organ systems of the organism, these germ layers include the ectoderm, mesoderm, and endoderm.

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Filed Under: Biology
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Q:

Ajanta and Ellora caves are situated in which state of India?

A) Kerala B) Odisha
C) Maharashtra D) Jammu & Kashmir
 
Answer & Explanation Answer: C) Maharashtra

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Q:

Which properties are characteristic of the group 1 metals?

A) Low melting points B) Produce hydrogen when react with water
C) Soft in nature D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Group 1 metals are also called as alkali metals with reactive in nature and low melting points. They are soft and produce hydrogen and alkaline metal hydroxide solution when they react with water.

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Q:

The complexity and variety of organic molecules is due to

A) their interaction with water B) their tremendously large sizes
C) the chemical versatility of carbon atoms D) the variety of rare elements in organic molecules
 
Answer & Explanation Answer: C) the chemical versatility of carbon atoms

Explanation:

The complexity and variety of organic molecules is due to the chemical versatility of carbon atoms.

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Q:

The modern periodic table consists of 18 groups and 7 periods. What is the atomic number of the element placed in the 1st group and the 4th period?

A) 21 B) 17
C) 19 D) 9
 
Answer & Explanation Answer: C) 19

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Filed Under: Chemistry
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