Biology Questions

Q:

The total number of pairs of Peripheral nerves in man are

A) 41 B) 42
C) 43 D) 44
 
Answer & Explanation Answer: C) 43

Explanation:
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Q:

Hardest Part of the Human Body?

A) Tooth Enamel B) Femur
C) Temporal bone of skull D) Knee bone
 
Answer & Explanation Answer: A) Tooth Enamel

Explanation:

Tooth Enamel is the hardest and most highly mineralized substance in the human body. It is a tissue and not a bone. This tissue has high mineral content which makes it hardest substance.

 

Femur and Temporal bone of the skull are the hardest bones of the human body.

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Q:

Total salt content in blood is about

A) 1.85 to 1.9% B) 11.85 to 11.9%
C) 2.85 to 2.9% D) 0.85 to 0.9%
 
Answer & Explanation Answer: D) 0.85 to 0.9%

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Q:

The gland that is present close to Trachea

A) Pancreas B) Liver
C) Adrrenal D) Thyroid
 
Answer & Explanation Answer: D) Thyroid

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Q:

During rainy season wooden doors are difficult to open or closure because of  ?

A) Imbibition B) Plasmolysis
C) Diffusion D) Osmosis
 
Answer & Explanation Answer: A) Imbibition

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Q:

Some species of which of the below kinds of organisms are employed as biopesticides?

1.Bacteria          2. Fungi       3. Flowering plants

A) 1 only B) 2 and 3 only
C) 1 and 3 only D) 1, 2 and 3
 
Answer & Explanation Answer: A) 1 only

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Q:

Agrostology is the study of

A) Seed of oil B) Crop
C) Grass D) Fruits
 
Answer & Explanation Answer: C) Grass

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Q:

Vivipary is defined as germination

A) during storage B) within the fruit
C) with cotyledons coming out of soil D) with cotyledons remaining inside the soil
 
Answer & Explanation Answer: B) within the fruit

Explanation:

Vivipary means germination even when attached to the mother plant. Usually the saline marsh plants (Halophytes) have their seeds growing even when they are inside the fruits attached to the tree.

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