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Q:

In which of the following kind of organisms is the phenomenon found where in the female kills the male after copulation __________

A) Drgonfly B) Honey bee
C) Spider D) Pit viper
 
Answer & Explanation Answer: C) Spider

Explanation:
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Filed Under: Biology

Q:

In a bisexual flower if androcium and gynoecium mature at different time the phenomeon is known as _________

A) Dichogamy B) Herpogamy
C) Haterogamy monogamy D) None of these
 
Answer & Explanation Answer: A) Dichogamy

Explanation:
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Filed Under: Biology

Q:

Gujarat is noted for the cultivation of 

A) Cotton B) Sugarcane
C) Saffron D) Jute
 
Answer & Explanation Answer: A) Cotton

Explanation:

Black soil coupled with favorable climatic conditions (Temperature of 21-320C and 30 -100 cm of rainfall) are responsible for cotton cultivation in Gujarat.

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Filed Under: Indian Geography
Exam Prep: Bank Exams , CAT
Job Role: Bank PO

Q:

Economically, the most important forests of India are

A) Tidal forest B) Thorn forest
C) Everngreen forest D) Tropical deciduous forest
 
Answer & Explanation Answer: D) Tropical deciduous forest

Explanation:

Tropical deciduous forest contain valuable teak, rosewood, sal and sandalwood trees

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Filed Under: Indian Geography

Q:

Kalbaisakhis or Norwesters originate in

A) Chhota Nagpur Plateau B) Karnataka Coast
C) Coromandal Coast D) Malwa plateau
 
Answer & Explanation Answer: A) Chhota Nagpur Plateau

Explanation:

They are carried eastwards to West Bengal and Assam by westerly winds

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Filed Under: Indian Geography

Q:

Antisnake venom is prepared by 

A) Pasteur institute B) Hoffkine's institute
C) Birla's Institute D) Indian science Institute
 
Answer & Explanation Answer: B) Hoffkine's institute

Explanation:

Antisnake venom: In the Hoffkine Institute at Bombay snake venom in mild dose is injected into horses and the horses are induced to produce anti-venom bodies. These are extracted and used in cases of snake bites.

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Filed Under: Biology

Q:

Oparin is known for his hypothesis on

A) origin of species B) origin of life
C) one germ one disease D) one gene one enzyme
 
Answer & Explanation Answer: B) origin of life

Explanation:

A. J . Oparin was the first to propose the origin of life from inorganic chemical atoms like Oxygen, Hydrogen, Nitrogen and Carbon.

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Filed Under: Biology

Q:

The phenomenon of summer sleep by animals is called

A) hibernation B) aestivation
C) laziness D) lethargy
 
Answer & Explanation Answer: B) aestivation

Explanation:

Aestivation is summer sleep. Many organisms like the snails do not find it comfortable in summer. They withdraw and lead a life with reduced BMR (basic Metabolic Rate) in a state of  dormancy.

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Filed Under: Biology