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 Biology Questions

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Q:

Name the vitamin whose deficiency causes excessive bleeding?

 

A) Vitamin A B) Vitamin B
C) Vitamin K D) Vitamin C
 
Answer & Explanation Answer: C) Vitamin K

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Q:

Which of the following is NOT a feature found in almost every cell ?

 

A) Cell wall B) Plasma membrane
C) Nucleus   D) Cytoplasm
 
Answer & Explanation Answer: A) Cell wall

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Q:

Among the components of the dermis are:

a. sweat glands

b. hair follicles

c. collagen fibers

d. sensory- nerve endings

e. arrestor pill muscles

A) a, b, d B) a, b, c, d, e
C) a, b, c, e D) a, c, d
 
Answer & Explanation Answer: B) a, b, c, d, e

Explanation:

The dermis is a layer of the skin of the integumentary system. The dermis lies deep to the superficial epidermis which is also the most superficial layer of the skin. The dermis lies superficial to the underlying hypodermis which is also referred to as subcutaneous tissue.

Among the components of the dermis are: sweat glands, hair follicles, collagen fibers, sensory- nerve endings and arrestor pill muscles.

 

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Q:

What is the process of production of ovum in the females called?

 

A) Adolescence B) Menarche
C) Oogenesis D) Menstruation
 
Answer & Explanation Answer: C) Oogenesis

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Q:

Blood is a connective tissue embedded in which type of intercellular matrix?

 

A) Jelly like B) Fluid
C) Dense D) No option is correct
 
Answer & Explanation Answer: B) Fluid

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Q:

Primary growth in plants occurs by

A. Vertical meristem

B. Lateral meristem

C. Intercalary meristem

D. Apical meristem

 

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

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Q:

Cultural transmission refers to the process of ______

 

 

A) cultural patterns moving from one society to another B) using the oral tradition
C) passing cultural patterns from one generation to another D) using writing to enshrine cultural patterns
 
Answer & Explanation Answer: C) passing cultural patterns from one generation to another

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Q:

Statement I :

A person may suffer from tuberculosis if she/he frequently visits crowded place.

Statement II :

Bacteria of tuberculosis spread through droplets by sneezing or coughing.

 

A) Both the statements are individually true and Statement II is the correct explanation of Statement I B) Both the statements are individually true but Statement II is not the correct explanation of Statement I
C) Statement I is true but Statement II is false D) Statement I is false but Statement II is true
 
Answer & Explanation Answer: D) Statement I is false but Statement II is true

Explanation:

Tuberculosis (TB) is caused by a type of bacterium called Mycobacterium tuberculosis.

It's spread when a person with active TB disease in their lungs coughs or sneezes and someone else inhales the expelled droplets, which contain TB bacteria.

One would have to spend prolonged periods (several hours) in close contact with an infected person to catch the infection yourself.For example, TB infections usually spread between family members who live in the same house. It would be highly unlikely for you to become infected by sitting next to an infected person on a bus or train. Hence, statement 1 is incorrect.

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