What is the main function of the pneumatophores which are found in mangrove trees?

Which of the following is the importance of the mangrove ecosystem?

I. Protection zone

II. Fishery resource

III. Forestry resource

IV. Animal hunting

The following information shows the interaction that occurs in the alimentary canal of termites.

What is the type of interaction that occurs between Trichonympha sp. and the termites?

Diagram shows an interaction between two organisms. What type of interaction is this?

The diagram shows a food web.

Which organisms are in the fourth trophic level?

There are three patterns of population distribution as shown in the Figure. Which of the following matches the pattern X, Y and Z correctly?

Diagram shows organisms P, Q and R.

Classify the organisms according to the types of nutrition.

Mangrove plants act as a natural barrier towards the energy waves.

Which characteristics of the mangrove plants can help to reduce the damage of the coastal area?

Diagram shows three different zones at a mangrove swamp.

Which types of roots are correctly matched to the dominant mangrove plants in the zones R, S and T?

Diagram shows a pyramid of number.

Which organism P, Q, R and S absorb energy from the Sun?

Diagram shows a pyramid of a food chain.

How much is the total energy received by the frog?