What is common to Lantana, Eichhornia and African catfish?
All are endangered species of India
All are key stone species
All are mammals found in India
All the species are neither threatened nor indigenous species of India.
The extinction of passenger pigeon was due to
Increased number of predatory birds
Over exploitation by humans
Non-availability of the food
Bird flu virus infection
Which of the following statements is correct?
Parthenium is an endemic species of our country.
African catfish is not a threat to indigenous catifishes.
Steller's sea cow is an extinct animal.
Lantana is popularly known as carrot grass.
Among the ecosystem mentioned below, where can one find maximum biodiversity?
Mangroves
Desert
Coral reefs
Alpine meadows
Which of the following forests is known as the 'Lungs of the planet Earth'?
Taiga forest
Tundra forest
Amazon rain forest
Rainforests of North-East India