Diversity in living organisms Worksheet

Given below are the Diversity in living organisms class 9 worksheet
(a) Concepts questions
(b) Long answer questions
(c) Fill in the blank's
Question 1.
Name two types of fishes based on their skeleton. Give one example of each type?
Question 2.
Explain the following terms:
(a)Bilateral symmetry
(b)Triploblastic animals and
(c)Open circulatory system
Question 3.
Who proposed the five kingdom classification? State the basis for grouping organisms into five kingdoms?
Question 4.
Homo sapiens is the scientific name of human beings? What do these two terms imply?
Question 5.
Leech, Nereis, prawn and scorpion – all have segmented body organization. Can they be placed in the same group? State yes/ no giving reasons?
Question 6.
Why birds have pneumatic/hollow bones?
Question 7.
A pore bearing organism like creature ‘A’ belongs to a phylum ‘B’ of kingdom Animalia. Identify ‘A’ and ‘B’?

Question 8.
Differentiate between skin of tree frog and human?
Question 9.
Give the outline of the classification of plants on the basis of various features?
Question 10
What are the major divisions in the plantae? What is the basis for these divisions?
Question 11.
Why plants like Pinus and Deodar are called gymnosperms?
Question 12.
Give any two differences between angiosperms and gymnosperms giving one example of each?
Question 13.
Why the presence of ‘coelom’ in an animal’s body is considered as advantageous?
Question 14.
Prove that Labio rohita (rohu) is a chordate?
Question 15.
Draw the diagram of Spirogyra and label the following parts:
Cell wall, Pyrenoids, Nucleus, Chloroplast
Question 16.
In the hierarchy of classification, which grouping will have the smallest number of organisms with a maximum of characteristics in common and which will have the largest number of organisms?
Question 17.
Propose three examples of characteristics used for hierarchial classification. Based of these, develop the definition of characteristics. Why the characteristics of body design used for classification of plants is different from those used for classifying animals?
Question 18.
How are the criteria for deciding divisions in plan kingdom different from the criteria for deciding the sub-groups among animals?
Question 19.
What is binomial nomenclature system? Who proposed this? List four convections that are followed while writing the scientific names?
Question 20.
Give three differences between monocotyledonous and dicotyledonous plants?

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