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 Biology Questions

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Q:

Nereis, Pheretima (Earthworm) and Hirudinaria (blood sucking leech) are examples of which Phylum?

A) Coelenterata B) Aschelminthes
C) Annelida D) Arthropoda
 
Answer & Explanation Answer: C) Annelida

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Q:

The cell wall in plants is interrupted by narrow pores carrying fine stands of cytoplasm which interlink the contents of the cells. These strands are called:-

A) Plasmahole B) Microvilli
C) Plasmodesmata D) Plasmalemma
 
Answer & Explanation Answer: C) Plasmodesmata

Explanation:

Plasmodesmata are interrupted by narrow pores carrying fine strands of cytoplasm, which interlink the contents of the cells.

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Q:

_______ are chlorophyll-bearing, simple, thalloid, autotrophic and largely acquatic (both fresh water and marine) organisms.

A) Pteridophytes B) Bryophytes
C) Algae D) Gymnosperms
 
Answer & Explanation Answer: C) Algae

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Q:

Potato, tomato and brinjal are three different species but all belong to which genus?

A) Solanum B) Panthera
C) Felis D) Tigris
 
Answer & Explanation Answer: A) Solanum

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Q:

The xylem in plants are responsible for:

A) transport of water B) transport of food
C) transport of amino acids D) transport of oxygen
 
Answer & Explanation Answer: A) transport of water

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Q:

Homeostasis is the condition in which the body maintains

A) a relatively stable internal environment within limits B) a changing state within an unlimited range
C) the lowest possible energy usage D) a static state with no deviation from preset points
 
Answer & Explanation Answer: A) a relatively stable internal environment within limits

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Q:

Which of the following vitamins are water soluble?

A) Vit. A & Vit. B B) Vit. B & Vit. C
C) Vit. C & Vit. D D) Vit. A & Vit. K
 
Answer & Explanation Answer: B) Vit. B & Vit. C

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Q:

The vitamin D deficiency disease in adults is known as

A) Hypovitaminosis D B) Avitaminosis
C) Scorbutus D) Petechiae
 
Answer & Explanation Answer: A) Hypovitaminosis D

Explanation:

Vitamin D also known as Sunshine vitamin is produced in the body when our skin is exposed to sunlight. Its deficiency leads to a disease in which bone tissue doesn't properly mineralize leading to soft bones. The vitamin D deficiency disease in adults is known as Hypovitaminosis D.

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