Question : Ecosystem consists of:

Option 1: A biotic community and its non - living elements

Option 2: Population

Option 3: A population and its non - living elements

Option 4: A biotic community

Question : Red data book contains data of which of the following?

Option 1: All plant species

Option 2: All animal species

Option 3: All endangered species

Option 4: All extinct species

Question : Which is the most stable ecosystem?

Option 1: Desert

Option 2: Ocean

Option 3: Mountain

Option 4: Forest

Question : Identify an example of organisms that do not belong to the third trophic level.

Option 1: Fishes

Option 2: Wolves

Option 3: Birds

Option 4: Cows

Question : Direction: Which of the given responses would be a meaningful order of the following?

1. Apartment    2. Town    3. Street     4. Building     5. Complex

Option 1: 1, 5, 4, 3, 2

Option 2: 4, 5, 3, 2, 1

Option 3: 2, 1, 3, 4, 5

Option 4: 1, 4, 5, 3, 2