What will happen -1)if a new animal is introduced to a new environment 2) the habitat of an animal is disturbed

Dear student, 
Please find below the solution to the asked query  
      
1. If a new animal species is introduced in a new environment, then this is known as invasion by alien species. This can be unintentional or deliberate and causes the declination of the indigenous species.
Example − Nile perch introduced in Lake Victoria led to the extinction of more than 200 species of cichlid fish in the lake.

2. The habitat of an animal provides it with necessities such as shelter, food, and protection. If the habitat of an animal is disturbed, then it will be forced to go to other places in search of food and shelter. The animal could get killed by other animals in this process.

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