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Q:

Plant tissues are of how many types?

A) 3 B) 2
C) 5 D) 6
 
Answer & Explanation Answer: A) 3

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Q:

Which of the following organs produces the enzyme lipase?

A) Pancreas B) Large Intestine
C) Liver D) Small Intestine
 
Answer & Explanation Answer: A) Pancreas

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Q:

Polynucleotide chain of DNA contains

A) a nitrogenous base, deoxyribose sugar and phosphate group B) a nitrogenous base, ribose sugar and phosphate group
C) deoxyribose sugar, ribose sugar and phosphate group D) a nitrogenous base and phosphate group only
 
Answer & Explanation Answer: A) a nitrogenous base, deoxyribose sugar and phosphate group

Explanation:

The two DNA strands are called polynucleotidesbecause they are composed of simpler monomer units called nucleotides. Eachnucleotideis composed of one of four nitrogen-containingnucleobases (cytosine, guanine, adenine or thymine), a sugar called deoxyribose, and a phosphate group.

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Q:

In females, the uterus is __________.

A) Single B) Double
C) Triple D) Four
 
Answer & Explanation Answer: A) Single

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Q:

By which process the cells of the meristematic tissue take up a permanent shape, size, and a function?

A) Demarcation B) Organisation
C) Simplification D) Differentiation
 
Answer & Explanation Answer: D) Differentiation

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Q:

What is the main purpose of white blood corpuscles?

A) to carry nutrients B) to combat infection
C) to carry oxygen D) to give strength
 
Answer & Explanation Answer: B) to combat infection

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Q:

Pneumonia affects which of the following organs of human body?

A) Kidneys B) Lungs
C) Throat D) Liver
 
Answer & Explanation Answer: B) Lungs

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Q:

Which is NOT an example of organism that breaks down the food material outside the body and then absorb it?

A) Bread moulds B) Yeast
C) Mushrooms D) Snake
 
Answer & Explanation Answer: D) Snake

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