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Chapters
2: Optics
3: Thermal Physics
4: Electricity
5: Acoustics
6: Nuclear Physics
7: Atoms and Molecules
8: Periodic Classification of Elements
9: Solutions
10: Types of Chemical Reactions
11: Carbon and its Compounds
12: Plant Anatomy and Plant Physiology
▶ 13: Structural Organisation of Animals
14: Transportation in Plants and Circulation in Animals
15: Nervous System
16: Plant and Animal Hormones
17: Reproduction in Plants and Animals
18: Genetics
19: Origin and Evolution of Life
20: Breeding and Biotechnology
21: Health and Diseases
22: Environmental Management
23: Visual Communication
![Samacheer Kalvi solutions for Science [English] Class 10 SSLC TN Board chapter 13 - Structural Organisation of Animals - Shaalaa.com](/images/science-english-class-10-sslc-tn-board_6:5f2b1b2038084cf381bfa42c826a928c.jpg "Samacheer Kalvi solutions for Science [English] Class 10 SSLC TN Board chapter 13 - Structural Organisation of Animals")
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Solutions for Chapter 13: Structural Organisation of Animals
Below listed, you can find solutions for Chapter 13 of Tamil Nadu Board of Secondary Education Samacheer Kalvi for Science [English] Class 10 SSLC TN Board.
Samacheer Kalvi solutions for Science [English] Class 10 SSLC TN Board 13 Structural Organisation of Animals Evaluation [Pages 197 - 199]
Choose the correct answer
In leech locomotion is performed by ______
Anterior sucker
Parapodia
Setae
Contraction and relaxation of muscles
The segments of leech are known as ______
Metameres (somites)
Proglottids
Strobila
All the above
Pharyngeal ganglion in leech is a part of ______
Excretory system
Nervous system
Reproductive system
Respiratory system
The brain of leech lies above the ______
Mouth
Buccal Cavity
Pharynx
Crop
The body of the leech has ______
23 segments
33 segments
38 segments
30 segments
Mammals are ______ animals.
Cold-blooded
Warm-blooded
Poikilothermic
All the above
The animals which give birth to young ones are ______
Oviparous
Viviparous
Ovoviviparous
All the above
Fill in the blanks
The posterior sucker is formed by the fusion of the ______ segments.
The existence of two sets of teeth in the life of an animal is called ______ dentition.
The anterior end of the leech has a lobe-like structure called ______.
The blood-sucking habit of a leech is known as ______.
______ separates nitrogenous waste from the blood in the rabbit.
______ spinal nerves are present in rabbits.
Identify whether the statements are True or False. Correct the false statement
An anticoagulant present in the saliva of the leech is called heparin.
True
False
The vas deferens serve to transport the ovum.
True
False
Diastema is a gap between premolar and molar teeth in rabbits.
True
False
The cerebral hemispheres of rabbits are connected by a band of nerve tissue called corpora quadrigemina.
True
False
Match columns I, II, and III correctly.
| Organs | Membranous Covering | Location |
| Brain | Pleura | abdominal cavity |
| Kidney | Capsule | Mediastinum |
| Heart | Meninges | enclosed in the thoracic cavity |
| Lungs | Pericardium | cranial cavity |
Answer in a sentence
Give the common name of the Hirudinaria granulosa.
How does leech respire?
Write the dental formula of rabbits.
How many pairs of testes are present in leech?
How is diastema formed in rabbits?
What organs are attached to the two bronchi?
Which organ acts as a suction pump in leech?
What does CNS stand for?
Why are the teeth of rabbits called heterodont?
How does leech suck blood from the host?
Short answer questions
Why are the rings of cartilages found in the trachea of rabbits?
List out the parasitic adaptations in the leech.
Long answer questions
How is the circulatory system designed in leech to compensate the heart structure?
How does locomotion take place in leech?
Explain the male reproductive system of rabbits with a labelled diagram.
Higher Order Thinking Skills (HOTS)
Arjun is studying in the tenth standard. He was down with fever and went to meet the doctor. As he went to the clinic he saw a patient undergoing treatment for a severe leech bite. Being curious, Arjun asked the doctor why leech bite was not felt as soon as it attaches to the skin? What would have been the reply given by the doctor?
Shylesh has some pet animals at his home. He has few rabbits too, one day while feeding them he observed something different with the teeth. He asked his grandfather, why is it so? What would have been the explanation of his grandfather?
Value based questions
Leeches do not have an elaborate secretion of digestive juices and enzymes - Why?
How is the digestive system of rabbits suited for the herbivorous mode of feeding?
Solutions for 13: Structural Organisation of Animals
Samacheer Kalvi solutions for Science [English] Class 10 SSLC TN Board chapter 13 - Structural Organisation of Animals
Shaalaa.com has the Tamil Nadu Board of Secondary Education Mathematics Science [English] Class 10 SSLC TN Board Tamil Nadu Board of Secondary Education solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. Samacheer Kalvi solutions for Mathematics Science [English] Class 10 SSLC TN Board Tamil Nadu Board of Secondary Education 13 (Structural Organisation of Animals) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
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Concepts covered in Science [English] Class 10 SSLC TN Board chapter 13 Structural Organisation of Animals are The Indian Cattle Leech (Hirudinaria Granulosa), Rabbit (Oryctolagus Cuniculus), External Morphology of Rabbit, Coelom (Body Cavity) of Rabbit, Digestive System of Rabbit, Respiratory System of Rabbit, Circulatory System of Rabbit, Nervous System of Rabbit, Urinogenital System of Rabbit, External Morphology of Leech, Digestive System of Leech, Respiratory System of Leech, Circulatory System of Leech, Nervous System of Leech, Excretory System of Leech, Reproductive System of Leech, Parasitic Adaptations of Leech.
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