biology - diversity in living organisms

Class 9 - Biology

Diversity in Living Organisms

MCQ
Q&A
Notes
Question:
Define Taxon.
Answer:

A taxon is a unit of classification of organisms which can be recognised to a definite category at any level of classification, e.g., fishes, birds, insects, etc.

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Questions and Answers


Diversity in Living Organisms - Questions
1. In which kingdom would you place an organism which is unicellular, eukaryotic and photosynthetic?
Answer
2. In the hierarchy of classification, which group will have the largest number of organisms?
Answer
3. Which division of plants are often called amphibians of the plant kingdom?
Answer
4. Woese introduced by dividing the Monera kingdom into two sub-kingdoms. Name the two?
Answer
5. Amar, Ujala and Anara wrote the scientic name of mango as follows. Who wrote it correctly.
Amar - Mangifera Indica
Ujala - Mangifera indica
Anara - mangifera indica
Answer
6. Identify the plant groups which has net like veins in leaves, flower parts in group of fours or fives, vascular bundles are in a ring and two seed leaves.
Answer
7. Give two examples of Pteridophyes
Answer
8. Pines and Deodar belong to which group of Plants?
Answer
9. Minimal body design, have holes which lead to canal system that helps in circulating water, marine habitat. Which division of Animalia it refers to?
Answer
10. Identify the Animalia group having following features:
Answer
11. Which worms cause elephantiasis. Name the group it belongs to?
Answer
12. Ambibian heart is divided into how many chambers?
Answer
13. Snakes, turtles, lizards and crocodiles belong to which category of vertebrates?
Answer
14. Four Chambered heart, mostly viviparous, skin covered with hairs, skin contains sweat and oil glands, four chambered heart. Which category of vertebrates are we talking about?
Answer
15. What is the primary characteristic on which the first division of organisms is made?
Answer
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?
Answer
17. Name the scientist who created the third kingdom for all microscopic unicellular organisms. What did he call it?
Answer
18. What is the criterion for classification of organisms as belonging to kingdom Monera or Protista?
Answer
19.

What is the contribution of Carl Woese (1977) in the classification of living beings?


Answer
20. What is a thallus?
Answer
21.

Why bryophytes are called the amphibians of the plant kingdom?


Answer
22.

List important characteristics (at least three) of bryophytes.


Answer
23. What are the uses of bryophytes?
Answer
24. How do thallophytes and pteridophytes differ from each other? Write two differences.
Answer
25. Name the plants that are called "First vascular land plants".
Answer
26.

On what basis plants are divided into two sub-kingdoms?


Answer
27. What are naked-seeded plants are called?
Answer
28. How Angiosperms are divided further?
Answer
29.

What are the general characteristics found in all animals?


Answer
30.

Write two important characteristics of sponges ?


Answer
31.

Label A to H in the given diagram of hydra.


Answer
32. Which animal phylum is commonly called as flatworms?
Answer
33. Leeches and Earthworms belong to which phylum?
Answer
34. How is a body of Arthropods segmented?
Answer
35. How do annelid animals differ from arthropods?
Answer
36. Name the phylum to which Start fish and Sea urchin belong to?
Answer
37. Name a symbiotic life form that grows on the bark of a tree as large, coloured patches.
Answer
38. Which in your opinion is more basic characteristic for classifying organism. The place where they live in or the kind of cells they are made of?
Answer
39. In which Kingdom, an organism does not have a well defined nucleus and organelles?
Answer
40. What is the mode of nutrition in Mushroom?
Answer
41. Algae belongs to which division of Plantae?
Answer
42. Give two examples of Bryophyta plants?
Answer
43. Give three examples of organisms that are arthopods.
Answer
44. What is the main basis of differentiation between vertebrates and non-vertebrates?
Answer
45. Cold blooded, two chamber heart, stream lined body, scales on skin, gills present, aquatic life. Which group of vertebrates are we referring to?
Answer
46. Name the fish which is entirely made of cartilage.
Answer
47. Give examples of egg laying mammals
Answer
48. Give an example of mammal that can fly.
Answer
49. What are the advantages of classification?
Answer
50. What is the primary reason for such a huge diversity we find in animals and plants?
Answer
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