List the important characteristics of living things which differentiate them from non-living things.

A and B are two animals one is adapted in water and one is adapted to live on land.
Animal A is small having no tail. It has moist, smooth skin and a very long hind legs for leaping.
Animal B is large animal having short legs long jaws and a long tail, leather is made from its skin.
(a) What could be animal A?
(b) Write one water adaptation of animal A.
(c) What could be animal B?

Ravi and Ritu went on a vacation to different places. They went to Rishikesh, Himalayas, Kerala, Rajasthan. They saw many kinds of trees, plants and animals, e.g. pine trees on Himalayas and cactus in Rajasthan. All the places were so, different from each other. They clicked pictures, collected samples and showed it to their teacher asking to explain the reason behind these variations.
(a) Why is there a difference in type of plants growing in different places?
(b) What do you mean by survival place of an organism?
(c) How many types of such places that give living organism shelter, food, etc., are you aware about?
(d) Give an example of variation plants from different regions.
(e) What values do we observe in Ravi and Ritu?

Like many animals although a car also moves it is not considered as a living organism. Give two or three reasons.

Riya lives in Delhi. During her vacations, she went to Leh with her parents. On the way, they all were fine. When they reached Leh, all of them started feeling nauseous and complained of a headache and breathing difficulties. A man travelling with them told them to rest for few days and everything will be fine. After few days, Riya observed that the man was right and they were feeling fine.
(a) Why were Riya and her family suffering with these symptoms?
(b) (i) After 2-3 days everybody was fine. Why?
(ii) Explain what happened?
(c) What values do you feel are present in Ria?

Where is Cactus mostly found? How is it adapted to survive in such a habitat?

Define the following:
(i) Prey
(ii) Predators
(iii) Acclimatization
(iv) Adaptation
(v) Stimuli

What are the adaptive features of a lion that help it in hunting?