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Q:

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.


Ants have been living on the earth for more than 100 million years and can be found almost anywhere on the planet. It is estimated that there are about 20000 different species of ants. For this reason ants have been called Earth's most successful species. If you watch ants for any length of time you will see that they really do communicate with each other and very effectively too. Ants communicate by touching each other with their antennae. Ants also use chemicals called pheromones to leave scent trails for other ants to follow. Ants build many different types of homes. Many ants build simple little mounds out of dirt or sand. Other ants use small sticks mixed with dirt and sand to make a stronger mound that offers protection from rain. Western Harvester ants make a small mound on top, but then tunnels up to 15 feet straight down to hibernate during winter. Ant mounds consist of many chambers connected by tunnels. Different chambers are used for nurseries, food storage, and resting places for the worker ants. Some ants live in wood like termites. Army ants don't make a home at all but travel in a large groups searching for food. Ants are social insects which means they live in large colonies or groups. Some colonies consist of millions of ants. There are three types of ants in each species, the queen, the sterile female workers and males. The male ants only serve one purpose, to mate with future queen ants and do not live very long. The queen grows to adulthood, mates, and then spends rest of her life laying eggs. A colony may have only one queen, or there may be many queens depending on the species. Ants go through four stages of development: egg, larva, pupa and adult.


Why are ants called the 'Earth's' most successful species?

A) Because they have been on earth for more than a 100 million years B) Because they can be found anywhere on earth
C) Because they have been on earth for more than a 100 million years and because they can be found anywhere on earth D) Because there are 2000 different species of ants on earth
 
Answer & Explanation Answer: C) Because they have been on earth for more than a 100 million years and because they can be found anywhere on earth

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

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Q:

Consider the following statement :“A sound body means one whichbends itself to the spirit and is always a ready instrument at its service.”The above statement is attributed to

A) Sardar Patel B) Winston Churchill
C) Mahatma Gandhi D) Baden-Powell
 
Answer & Explanation Answer: C) Mahatma Gandhi

Explanation:

According to Gandhiji, A sound body means one which bends itself to the spirit and is always a ready instrument at its service. Such bodies are not made, in my opinion, on the football field. They are made on cornfields and farms.

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Filed Under: Indian History
Exam Prep: GATE

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Q:

Plants grow in size because of 

A) addition of cells B) increase in size of cells
C) enlargement of cells D) elongation of cells
 
Answer & Explanation Answer: A) addition of cells

Explanation:

Plants grow in size both in height and in grith. Enlargement  of cells already present cannot contribute much to the growth. Only addition of more and more cells could increase the size of the plant considerably.

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Filed Under: Biology

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Q:

The Bantu were experts in this form of metallurgy

A) Copper B) Gold
C) Iron D) Steel
 
Answer & Explanation Answer: C) Iron

Explanation:

The Bantu were comprised of more than 500 ethnic groups of Africa for migrations. The Bantu were experts in the form of iron metallurgy. 

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Filed Under: Indian History
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Q:

I jump when i walk and sit when i stand, who am I?

Answer

Kangaroo.

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Q:

Is cholesterol Hydrophobic or Hydrophilic?

A) Hydrophobic B) Hydrophilic
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:

Cholesterol is referred as an amphipathic molecule, that it contains its hydrophilic and hydrophobic parts.

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Filed Under: General Science
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Q:

What is the first step when supervising detainee operations?

Answer

The first step is to disarm and secure detainees when supervising detainee operations.

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Subject: Indian Politics Exam Prep: AIEEE , Bank Exams
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Q:

Which group of animals are exclusively free living marine animals?

A) Arthropoda B) Echinodermata
C) Mollusca D) Nematoda
 
Answer & Explanation Answer: B) Echinodermata

Explanation:
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Filed Under: Animals and Birds
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