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Diversity In Living Organism

You are given leech, Nereis, Scolopendra, prawn and scorpion; and all
have segmented body organisation. Will you classify them in one group? If
no, give the important characters based on which you will separate these
organisms into different groups.

05/11/2024

Science

9th

Diversity In Living Organism

Define the terms and give one example of each
(a) Bilateral symmetry
(b) Coelom
(c) Triploblastic

05/11/2024

Science

9th

Light

How many images of a candle will be formed if it is placed between two
parallel plane mirrors separated by 40 cm?

05/11/2024

Science

8th

Light

What is the angle of incidence of a ray if the reflected ray is at an angle of
90° to the incident ray?

05/11/2024

Science

8th

Diversity In Living Organism

Thallophyta, bryophyta and pteridophyta are called as ‘Cryptogams’.
Gymnosperms and Angiosperms are called as ‘phanerogams’. Discuss why?
Draw one example of Gymnosperm.

05/11/2024

Science

9th

Light

Explain how you can take care of your eyes.

05/11/2024

Science

8th

Light

Gurmit wanted to perform Activity 13.8 using a laser torch. Her teacher
advised her not to do so. Can you explain the basis of the teacher’s advise?

05/11/2024

Science

8th

Diversity In Living Organism

Write names of few thallophytes. Draw a labelled diagram of Spirogyra.

05/11/2024

Science

9th

Light

Draw a labelled sketch of the human eye.

05/11/2024

Science

8th

Light

Describe the construction of a kaleidoscope.

05/11/2024

Science

8th