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Q:

Sponges belongs to the phylum

A) Protozoa B) Annelida
C) Porifera D) Cnidaria
 
Answer & Explanation Answer: C) Porifera

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Q:

The largest artery in human body is

A) Aorta B) Capillary
C) Vena cava D) Pulmonary vein
 
Answer & Explanation Answer: A) Aorta

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Q:

In which one of the following types of connective tissues in animals does fat get stored?

A) Adipocyte B) Chondrocyte
C) Osteocyte D) Reticulocyte
 
Answer & Explanation Answer: A) Adipocyte

Explanation:

Adipocytes are the major source of leptin production, and plasma leptin concentrations directly correlate with the amount of total body fat.

Adipocytes are highly specialized cells that play a crucial role in the energy balance of most vertebrates.

Adipocytes convert excess energy to tri-acylglycerol and deposit it during feeding in preparation for periods of food deprivation.

Adipocytes may become enlarged by increased fat storage

 

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Q:

The alimentary canal is a long tube that extends from ______.

A) mouth to stomach B) stomach to large intestine
C) small intestine to anus D) mouth to anus
 
Answer & Explanation Answer: D) mouth to anus

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Q:

Xylem helps in transportation of which of the following?

A) Food B) Water
C) Nutrients D) Both food and water
 
Answer & Explanation Answer: B) Water

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Q:

The male sex accessory ducts include vasa efferentia, epididymis, vas deferens and______.

A) Cervix B) Rete Testis
C) Glands D) Seminiferous Tubules
 
Answer & Explanation Answer: B) Rete Testis

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Q:

A US team of scientists has found that the mechanism responsible for the ageing process is located --

A) Inside the face B) Inside the skin
C) Inside the brain D) Inside the heart
 
Answer & Explanation Answer: C) Inside the brain

Explanation:
The US team of scientists found the mechanism in the hypothalamus, which is located deep inside the brain and showed that it is responsible for the ageing process.
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Q:

In a majority of flowering plants, out of the four megaspores, what is the ratio of functional and degenerate megaspores?

A) 2:2 B) 1:3
C) 3:1 D) 4:0
 
Answer & Explanation Answer: B) 1:3

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