If a harmful chemical enters a food chain consisting of snacks, grasshoppers, plants and frogs, which one of the organisms is likely to have a maximum concentration of harmful chemicals in its body?

2

(a)

A food chain consisting of Peacock, Frog, Snake, Grasshopper. Which organisms do you think will have high level of pesticides? What is the phenomenon called? Arrange the food chain.

2

(a)

In comparing two ecosystems 'X' and 'Y', i is observed that 'X' has only first and second order consumers, while 'Y' has third, fourth and fifth order consumers. Which of the two would be more stable?

2

(a)

In the food chain given below:
Grass\(\longrightarrow\)Grasshopper\(\longrightarrow\)Frog\(\longrightarrow\)Snake\(\longrightarrow\)Peacock
What will happen if all the frogs are removed?

2

(a)

A non-biodegradable toxic chemical has entered into the food chain. Which type of food habit will you suggest, vegetarian or non-vegetarian? Why?

2

(a)