Amongst the animal groups given below, which one appears to be more vulnerable to extinction?

1.	Insects	2.	Mammals
3.	Amphibians	4.	Reptiles

Which one of the following is an endangered plant species in India?

What is common to Lantana, Eichhornia, and African catfish?

The extinction of passenger pigeons was due to:
1. Increased number of predatory birds
2. Over-exploitation by humans
3. Non-availability of the food.
4. Bird flu virus infection

Which of the following statements is correct?
1. Parthenium is an endemic species of our country.
2. African catfish is not a threat to indigenous catfishes.
3. Steller’s sea cow is an extinct animal
4. Lantana is popularly known as carrot grass.

Among the ecosystem mentioned below, where can one find maximum biodiversity?

Which of the following forests is known as the ‘lungs of the planet Earth’?
1. Taiga forest
2. Tundra forest
3. Amazon rainforests
4. Rainforests of North East India

The active chemical drug reserpine is obtained from:

Which of the following group exhibit more species diversity?

Which of the below-mentioned regions exhibit less seasonal variations?