The species confined to a particular re...

The species confined to a particular region and not found elsewhere is termed as:

Alien

Endemic

Rare

Keystone

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Find the wrongly matched pair. (a) Endemism - Species confined to a region and not found anywhere else. (b) Hotspots - Western ghats (c) Ex-situ Conservation - Zoological parks (d) Sacred groves - Saintri hills of Rajasthan (e) Alien sp. of India - Water hyacinth

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When the margins of sepals or petals overlap one another without any particular direction, the condition is termed as

The plants found in a particular area are known as ………. .

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Group of organisms of the same species in a given area at a particular time is called as

The shells of crabs found around a particular coastal location in Japan seem mostly to resemble the legendary face of a Samurai. Given below are two explanations of this observed fact. Which of these strikes you as a scientific explanation ? (a) A tragic sea accident several centuries ago drowned a young Samurai. As a tribute to his bravery, nature through its inscrutable ways immortalised his face by imprinting it on the crab shells in that area. (b) After the sea tragedy, fishermen in that area, in a gesture of honour to their dead hero, let free any crab shell caught by them which accidentally had a shape resembling the face of a Samurai. Consequently, the particular shape of the crab shell survived longer and therefore in course of time the shape was genetically propagated. This is an example of evolution by artificial selection.

A species found restricted to a geographic area ______.

A guard of 12 men is formed from a group of n soldiers. It is found that 2 particular soldiers A and B are 3 times as often together on guard as 3 particular soldiers C, D & E . Then n is equal to

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