NEET BIOLOGY

Detailed explanation-1: -They often use up resources that other organisms need. They are not able to successfully breed in the wild. They release pollution into many environments. They easily contract and spread diseases to other organisms.

Detailed explanation-2: -They simply exist where they have not naturally occurred. Other terms used for non-native species include ‘exotic’ or ‘alien’ species, but these are often discouraged terms, as they may imply another meaning.

Detailed explanation-3: -An invasive species is an organism that is not indigenous, or native, to a particular area. Invasive species can cause great economic and environmental harm to the new area.

Detailed explanation-4: -Invasive species are primarily spread by human activities, often unintentionally. People, and the goods we use, travel around the world very quickly, and they often carry uninvited species with them. Ships can carry aquatic organisms in their ballast water, while smaller boats may carry them on their propellers.