Question

Identify the exotic species from the givenlexamples.
(a) Nile perch for Lake Victoria of East Africa
(b) Carrot grass for India
(c) Water hyacinth for India
(d) Cichlid fish for Lake Victoria of East Afric
Choose answer:
Only (b) and (c)
Only (a) and (d)
Only (a) and (c)

Answer 1

When alien species are introduced unintentionally or deliberately for whatever purpose, some of them turn invasive and cause decline or extinction of indigenous species. Such species are also called exotic or introduced species. Examples:-

A) The Nile perch introduced into Lake Victoria in East Africa led eventually to the extinction of an ecologically unique assemblage of more than 200 species of cichlid fish in the lake.

B) The recent illegal introduction of the African catfish Clarias gariepinus for aquaculture purposes is posing a threat to the indigenous catfishes in our rivers.

So, the correct answer is 'Invasion of alien species'.

Answer 2

the exotic species from the givenlexamples.

(a) Nile perch for Lake Victoria of East Africa

(c) Water hyacinth for India

Option 3

Explanation:

• the exotic species of the alien species are those organism which are not naturally present in a particular Habitat.

• They have the capability to multiply and grow very fast. As a result of this the feel of the habitat with the same type of creature. As a result of this they consume all the nutrients of that particular region and the other creature which were original inhabitants of that place die due to lack of Nutrition.

To know more about alien species,

When an alien species that does not belong to an ecosystem is ..

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