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The body of sponges does not possess tissue level of organisat
Biology Exemplar
Biology Exemplar

Class 11

NCERT Exemplar

Publisher:
NCERT
Subject:
Biology
1

Chapter 1: The Living World

37 questions

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2

Chapter 2: Biological Classification

33 questions

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3

Chapter 3: Plant Kingdom

28 questions

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4

Chapter 4: Animal Kingdom

45 questions

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5

Chapter 5: Morphology of Flowering Plants

42 questions

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6

Chapter 6: Anatomy of Flowering Plants

52 questions

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7

Chapter 7: Structural Organization in Animals

48 questions

Q1
Frogs are beneficial for mankind, justify the statement.
Q2
The body of sponges does not possess tissue level of organisation though it is made of thousands of cells. Comment.
Q3
Structural organisation in animals attains different levels as cell-organ-organ system. What is missing in this chain? Mention the significance of such an organisation. 
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8

Chapter 8: Cell: The Unit of Life

39 questions

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9

Chapter 9: Biomolecules

31 questions

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10

Chapter 10: Cell Cycle and Cell Division

43 questions

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11

Chapter 11: Transport in Plants

66 questions

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12

Chapter 12: Mineral Nutrition

39 questions

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13

Chapter 13: Photosynthesis in Higher Plants

59 questions

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14

Chapter 14: Respiration in Plants

42 questions

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15

Chapter 15: Plant Growth and Development

48 questions

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16

Chapter 16: Digestion and Absorption

34 questions

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17

Chapter 17: Breathing and Exchange of Gases

32 questions

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18

Chapter 18: Body Fluids and Circulation

42 questions

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19

Chapter 19: Excretory Products and their Elimination

44 questions

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20

Chapter 20: Locomotion and Movement

39 questions

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21

Chapter 21: Neural Control and Coordination

31 questions

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22

Chapter 22: Chemical Coordination and Integration

39 questions

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Question
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The body of sponges does not possess tissue level of organisation though it is made of thousands of cells. Comment.

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Biology Exemplar (NCERT Exemplar)

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The level of organisation in sponges is of cellular level. The cells in sponges do not organise to form tissue, although they possess thousands of independently associated cells. The cells may be solitary or colonial and function more or less independently. The cells show division of labour for performing specialised functions. 
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Frogs are beneficial for mankind, justify the statement.
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The body of sponges does not possess tissue level of organisation though it is made of thousands of cells. Comment.
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Structural organisation in animals attains different levels as cell-organ-organ system. What is missing in this chain? Mention the significance of such an organisation. 
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Question Text
The body of sponges does not possess tissue level of organisation though it is made of thousands of cells. Comment.
TopicStructural Organization in Animals
SubjectBiology
ClassClass 11
Answer TypeText solution:1
Upvotes88