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Q:

Which of the following is responsible for Vermicomposting?

A) Fungus B) Worms
C) Bacteria D) Birds
 
Answer & Explanation Answer: B) Worms

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Q:

Sexual reproduction in Algae that takes place through fusion of two similar size gametes is called?

A) Zoospores B) Anisogamous
C) Isogamous D) Oogamous
 
Answer & Explanation Answer: C) Isogamous

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Q:

Which one of the following statements is correct?

A) Urea is produced in liver B) Urea is produced in blood
C) Urea is produced from digestion of starch D) Urea is produced in lung and kidney
 
Answer & Explanation Answer: A) Urea is produced in liver

Explanation:

Urea is produced in the liver and is a metabolite (breakdown product) of amino acids. Ammonium ions are formed in the breakdown of amino acids. Some are used in the biosynthesis of nitrogen compounds. Excess ammonium ions are converted to urea.

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Q:

During fermentation of sugar, the compound which is always formed is

A) Methyl Alcohol B) Ethyl Alcohol
C) Acetic Acid D) Ethylene
 
Answer & Explanation Answer: B) Ethyl Alcohol

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Q:

Alveoli are balloon like structures within the ______.

A) lungs B) kidney
C) liver D) heart
 
Answer & Explanation Answer: A) lungs

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Q:

The hormone that helps plants respond to drought is

A) abscisic acid B) cytokinin
C) gibberellin D) ethylene  
 
Answer & Explanation Answer: A) abscisic acid

Explanation:

During drought, plants would be in scarcity for water. For ensuring the mineral loss of water through stomata, the plant starts to produce abscisic acid.

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Q:

How many facial bones are there?

A) 34 B) 24
C) 14 D) 4
 
Answer & Explanation Answer: C) 14

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Q:

For the aquatic organisms, the source of food is

A) Phytoplankton B) Sea Weed
C) Aqua plankton D) Zooplankton
 
Answer & Explanation Answer: A) Phytoplankton

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