SSC MTS EXAM

SSC

BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
An alien (not native to the ecosystem) species brought to an area by man, which competes for resources and causes problems for the native species within an ecosystem
A
keystone species
B
invasive species
C
limiting factors
D
resilience
Explanation: 

Detailed explanation-1: -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. Not all non-native species are invasive.

Detailed explanation-2: -invasive species, also called introduced species, alien species, or exotic species, any nonnative species that significantly modifies or disrupts the ecosystems it colonizes. Such species may arrive in new areas through natural migration, but they are often introduced by the activities of other species.

Detailed explanation-3: -Exotic species are organisms that have been introduced into an area outside their normal distribution.

Detailed explanation-4: -Alien species: a species introduced outside its natural distribution. Invasive alien species (IAS): an alien species which threatens ecosystems, habitats and species. These are addressed under Article 8(h) of the CBD.

There is 1 question to complete.