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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?

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

Namita is from the state of Kerala. She has come to Dubai to serve as a governess for the only child of the Nairs. The Nairs are nice and gentle and Namita has no cause to complain. One day she overhears something that makes her jittery. Mr. Nair is not employed in an American company as she has been told. The nature of his business is illegal. She is shocked and wants to go back to her home town to her own people.

Gopal is from a very poor family. His family owns a very small piece of land that can hardly meet their food requirement. One day, Gopal gets a nice offer to work in the Emirates with a construction contractor. In order to meet the expenses on travelling, the family decides to sell their own land and send Gopal to the foreign country, to make money. On arrival, the contractor confiscates Gopal's passport and gives him a small place to live in with ten others like him. Gopal has little idea what he must do.

The conclusion that can be drawn from both situations is that people should

Filed Under: English
Exam Prep: Bank Exams

The main cause of rancidity in foods is the ____ of fats and oils.

Filed Under: Chemistry
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Which was the only Indus site with an artificial brick dockyard?

Filed Under: Indian Geography
Exam Prep: AIEEE , Bank Exams , CAT
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What are the two types of pure substances?

Subject: Chemistry Exam Prep: AIEEE , Bank Exams , CAT , GATE
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What is keyword contextual targeting?

Subject: Google Certification

What is Memory-Management Unit (MMU)?

Subject: Operating Systems

First generation of computer was based on which technology?

Filed Under: General Awareness
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