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 Biology Questions

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Q:

The valve present between left auricle and left ventricle is

A) Mitral B) Tricuspid
C) Semilunar D) Pulmonary
 
Answer & Explanation Answer: A) Mitral

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23 5082
Q:

Blood pressure is measured with

A) Thermometer B) Barometer
C) Sphygmomanometer D) Lactometer
 
Answer & Explanation Answer: C) Sphygmomanometer

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13 5050
Q:

The Vitamin that is destroyed on heating

A) E B) C
C) A D) B
 
Answer & Explanation Answer: B) C

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Q:

The schwann cell forms a myelin sheath around the

A) nodes of Ranvier B) dendrites
C) nucleus D) axon
 
Answer & Explanation Answer: D) axon

Explanation:

Schwann cells or neurolemmocytes are the cells in the peripheral nervous system that form the myelin sheath around a neuron's axon.

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1 4954
Q:

Which one of the following strongly threatens biodiversity?

A) Eragile ecosystems such as mangroves and wetlands B) Inaccessible habitates in the Himalayas
C) Desstruction of natural habitates and regetation and Jhum cultivation D) Creation of biosphere reserves
 
Answer & Explanation Answer: C) Desstruction of natural habitates and regetation and Jhum cultivation

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13 4941
Q:

A true species in mauritius failed to reproduce because of the extinction of a fruit eating bird. Which one of the following was that bird?

A) Dove B) Dodo
C) Condor D) Skua
 
Answer & Explanation Answer: B) Dodo

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7 4927
Q:

Islets of Langerhans are present in

A) Kidney B) Liver
C) Pancreas D) Trachea
 
Answer & Explanation Answer: C) Pancreas

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11 4925
Q:

Leukorrhea may be associated with

A) Cervicitis B) Ovarian Cysts
C) Eclampsia D) Menorrhagia
 
Answer & Explanation Answer: A) Cervicitis

Explanation:

Leukorrhea is a thick, whitish or yellowish vaginal discharge. There are many causes of leukorrhea, the usual one being estrogen imbalance. The amount of discharge may increase due to vaginal infection or STDs, and it may disappear and reappear from time to time. This discharge can keep occurring for years, in which case it becomes more yellow and foul-smelling. It is usually a non-pathological symptom secondary to inflammatory conditions of vagina or cervix.

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