Write a brief note on three domains of life.

5

(a)

Ria went to see the zoo in her town with her parents and saw many wild animals, their food habits, behavior, etc. She saw that there was a wide variety of animal life in the zoo. But she was amazed to see that the board placed in front of lion cage and monkey place which tells that both were mammals. However, she thought that they were totally different in appearance.
(i) Why lions and monkeys are considered to be mammals?
(ii) Explain the scientific reason to maintain a zoological park.
(iii) Is there any similar place to see a variety of plants? If any, then name some.
(iv) What values are shown by Ria?

5

(a)

What is meant by living ? Give any four defining features of life forms.

5

(a)

Brassica campestris Linn
(i) Give the common name of the plant.
(ii) What do the first two parts of the name denote?
(iii) Why are they written in italics?
(iv) What is the meaning of Linn written at the end of the name?

5

(a)

A scientist came across a plant, which he feels is a new species. How will he proceed towards its identification, classification and nomenclature?

5

(a)

What is the difference between living and non-living?

5

(a)

What is the benefit of classification of living beings?

5

(a)

What is the benefit of manuals and records for scientific study of living beings?

5

(a)