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Invasive Alien Species (IAS)

An exotic spe...

Question

An exotic species that is introduced to a new area and spreads rapidly resulting in elimination of native species is called

A

immigrant species

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B

invasive species

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C

destructive species

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D

none of these

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Solution

The correct option is B
invasive species

When an exotic or alien species is introduced to a new area, it may spread rapidly resulting in elimination of native species. Such species are called invasive species.

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Similar questions

Q. Assertion: When certain exotic species are introduced into a new geographical area not native to them, they start spreading fast without a check and are termed "invasive".
Reason: The exotic species do not have its natural predators in that area.

Q. Reasons that the population size of an exotic species often grows rapidly when the species is introduced in a new environment include which of the following?
(i) The exotic species is resistant to pesticides.
(ii) There is a large, underutilised food source in the new environment.
(iii) The exotic species has few natural predators in the new environment.

Q. Assertion: Exotic species introduced in an ecosystem out-compete native species for food and shelter

Reason: Natural predators of exotic species are absent in the ecosystem to which they are introduced

Q. The species of plants that are native to a place are called exotic species.

Q.
Read the following statements and select the correct option.
Statement 1 The prickly pear cactus introduced into Australia in early 1920s caused by spreading rapidly into millions of hectares of rangeland
Statement 2 When certain exotic species are introduced into a geographical area, they become invasive and start spreading fast because the invaded land does not have its natural predators

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