Construct a food chain comprising the following :
Snakes, Hawk, Rats, Plants

Name the organisms belonging to the second and the fourth trophic levels in the food chain comprising the following ? Frogs, Plants, Snakes, Hawk, Insects

Which organisms belong to third and fourth trophic levels in the food chain comprising the following ? Rat, Plants, Hawk, Snakes

Paheli wrote a food chain in the following way: frog to eagle to insects to grass to snake The chain is not in the correct order. Help her to write the food chain correctly.

(a) "Improvements in our lifestyle have resulted in greater amounts of waste generation". Give two examples to support the given statement. Suggest one change that we can incorporate in our lifestyle in order to reduce non-biodegradable waste. (b) The following organisms form a food chain. Write the food chain. Insect, Hawk, Grass, Snake, Frog Which of these will have highest concentration of non-biodegradable chemicals? Name the phenomenon.

In the food chain comprising of a snake, grass, insect, and frog, the secondary consumer is :

An aquatic food chain comprises of the organisms like tadpoles, weeds, fish and waterbeetles. The organism which gets the minimum energy through this food chain is :