Science and Technology II · Textbook solutions
Animal Classification
Every solved example, exercise, and miscellaneous question, in the order the textbook teaches them. Plus every board question asked from this chapter. · 24 questions
Exercise
24 q
- Identify me.Ex Q1(a)I am diploblastic & acoelomate. Which phylum do I belong to?
- Ex Q1(b)My body is radially symmetrical. Water vascular system is present in my body. I am referred as fish though I am not. What is my name?
- Ex Q1(c)I live in your small intestine. Pseudocoelom is present in my thread like body. In which phylum will you include me?
- Ex Q1(d)Though I am multicellular, there are no tissues in my body. What is the name of my phylum?
- Ex Q2Write the characters of each of the following animals with the help of classification chart. Bath sponge, grasshopper, rohu, penguin, frog, lizard, elephant, jellyfish.
- Ex Q3Write in brief about progressive changes in animal classification.
- Ex Q4What is the exact difference between grades of organization and symmetry? Explain with examples.
- Answer in brief.Ex Q5(a)Give scientific classification of shark up to class.
- Ex Q5(b)Write four distinguishing characters of phylum- Echinodermata.
- Ex Q5(c)Distinguish between butterfly and bat with the help of four distinguishing properties.
- Ex Q5(d)To which phylum does Cockroach belong? Justify your answer with scientific reasons.
- Give scientific reasons.Ex Q6(a)Though tortoise lives on land as well as in water, it cannot be included in class- Amphibia.
- Ex Q6(b)Our body irritates if it comes in contact with jelly fish.
- Ex Q6(c)All vertebrates are chordates but all chordates are not vertebrates.
- Ex Q6(d)Balanoglossus is connecting link between non-chordates & chordates.
- Ex Q6(e)Body temperature of reptiles is not constant.
- Answer the following questions by choosing correct option.Ex Q7(a)Which special cells are present in the body of sponges (Porifera)?
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- Ex Q7(b)Which of the following animals' body shows bilateral symmetry?
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- Ex Q7(c)Which of the following animals can regenerate it's broken body part?
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- Ex Q7(d)Bat is included in which class?
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- Ex Q8Complete the following chart.
Body cavity Germ Layer Phylum Absent ------------- Porifera Absent Triploblastic ----------- Pseudocoelom ------------- Aschelminthes. Present ------------- Arthropoda - Ex Q9Complete the following chart.
Type Character Example Cyclostomata Gill respiration Amphibia Whale Poikilotherms - Ex Q10Sketch, label and classify Hydra, Jellyfish, Planaria, Round worm, Butterfly, Earthworm, Octopus, Star fish, Shark, Frog, Wall lizard, Pigeon.
- Ex Q11Label the following.
What the board has asked from this chapter
Questions per paper · 11 papers · 2018 to 2026
2018: 1 questions per paper. 2019: 5 questions per paper. 2020: 6 questions per paper. 2022: 3 questions per paper. 2023: 3 questions per paper. 2024: 5 questions per paper. 2025: 2.5 questions per paper. 2026: 3 questions per paper
June 2026
3 q
- Q1(B)(iii)आकृतीत दर्शविलेल्या प्राण्याचा वर्ग लिहा :Identify the class of the animal shown in the given diagram.Chordates
- Q2(A)(ii)शास्त्रीय कारणे लिहा : जेलीफिश या प्राण्याबरोबर संपर्क आल्यास आपल्या शरीराचा दाह होतो.Give scientific reason: Our body irritates if it comes in contact with jelly fish.Non-Chordates
- Q3(iv)कंटकचर्मी प्राणिसंघाची कोणतीही तीन वैशिष्ट्ये लिहा.Write any three distinguishing characters of phylum Echinodermata.Non-Chordates
March 2026
3 q
- Q1(A)(iii)वटवाघूळाचा समावेश ____ वर्गात होतो.Bat is included in class ____________.
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Chordates - Q2(A)(ii)शास्त्रीय कारणे लिहा : सरीसृप प्राण्यांच्या शरीराचे तापमान अस्थिर असते.Give scientific reason: Body temperature of reptiles is not constant.Chordates
- Q3(v)खाली दिलेल्या चित्रात दर्शविलेल्या प्राण्यांचे शारीरिक सममितीचे प्रकार ओळखा :Identify the type of body symmetry of the animals shown in the given pictures (A), (B) and (C).Basis of Classification
July 2025
2 q
- Q1(A)(ii)____ हा प्राणी आपल्या शरीराच्या तुटलेल्या भागाची पुनर्निर्मिती करू शकतो.Which of the following animals can regenerate its broken body part?
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Non-Chordates - Q4(ii)खालील चित्रांचे निरीक्षण करून विचारलेल्या प्रश्नांची उत्तरे लिहा : (अ) आकृतीमध्ये दाखवलेल्या प्राण्यांचे वर्ग लिहा. (ब) अनुकूलनाच्या दृष्टीने वरील प्राण्यांमध्ये कोणते साधर्म्य दिसून येते ? (क) या प्राण्यांमध्ये साधर्म्य असून ही त्यांचे वर्गीकरण भिन्न वर्गांत का केले आहे ?Observe the following picture (Fig. A and Fig. B). Write the answers of the following questions: (a) Identify the class of animals shown in above picture. (b) Which similarities are shown in above animals from the adaptation point of view? (c) Why these animals are included in different classes inspite of their similarities?Chordates
March 2025
3 q
- Q1(B)(v)मी मत्स्यप्राणी वर्गातील असूनही फुफ्फुसाद्वारे श्वसन करतो, तर मी कोण ?Being a fish, I perform respiration with the help of lungs. Who am I?Chordates
- Q2(B)(ii)फरक स्पष्ट करा : मत्स्यप्राणी वर्ग आणि सरीसृपप्राणी वर्ग.Distinguish between the following: Class Pisces and Class Reptiles.Chordates
- Q3(v)मृदुकाय प्राणीसंघातील प्राण्यांच्या शरीराचे तीन वैशिष्ट्ये लिहा.Write three characteristics of phylum-Mollusca.Non-Chordates
July 2024
4 q
- Q1(B)(i)वेगळा घटक ओळखा : तारामासा, गोगलगाय, बेडूक, अमिबाFind odd man out: Starfish, Snail, Frog, AmoebaBasis of Classification
- Q1(B)(iv)आकृतीत दाखविलेल्या प्राण्याचा संघ ओळखा :Observe the diagram and identify the phylum:Non-Chordates
- Q2(A)(ii)शास्त्रीय कारणे लिहा : कासव जमिनीवर आणि पाण्यातही राहते, तरीही त्याचा उभयचर या वर्गामध्ये समावेश करता येत नाही.Give scientific reason: Though tortoise lives on land as well as in water, it cannot be included in class-Amphibia.Chordates
- Q3(i)पक्षीवर्गीय प्राण्यांची तीन मुख्य लक्षणे लिहा.Write any three characteristic features of class "Aves".Chordates
March 2024
6 q
- Q1(A)(v)संधीपाद संघाचे उदाहरण ____ हे आहे.An example of phylum Arthropoda is ____.
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Non-Chordates - Q1(B)(i)गटातील वेगळा शब्द ओळखा : डकबील प्लॅटिपस, पापलेट, लंगफीश, पेरीपॅटसPick the odd man out: duckbill platypus, pomfret, lungfish, peripatus.Basis of Classification
- Q2(A)(i)शास्त्रीय कारणे लिहा : कासव जमिनीवर आणि पाण्यातही राहते, तरीही त्याचा उभयचर या वर्गामध्ये समावेश करता येत नाही.Give scientific reason: Though a tortoise lives on land as well as in water, it cannot be included in class Amphibia.Chordates
- खालील विधाने वाचून विचारलेल्या प्रश्नांची उत्तरे लिहा :Read the statements and answer accordingly (identify the group and give one example):Q3(viii)(a)माझ्या त्वचेवर कॅल्शियम कार्बोनेटचे काटे आहेत. मी प्रचलनासाठी व अन्न पकडण्यासाठी नलिकापादांचा उपयोग करतो. माझा प्राणीसंघ ओळखा व एक उदाहरण लिहा.Calcareous spines are present on the body. Tube feet are used for locomotion and for capturing prey also. — Identify the phylum and give one example.Non-Chordates
- Q3(viii)(b)मी तुमच्या लहान आतड्यात राहतो. माझ्या धाग्यासारख्या शरीरामध्ये आभासी देहगुहा आहे. माझा समावेश कोणत्या संघात होतो ते सांगून एक उदाहरण लिहा.I live in your small intestine. Pseudocoelom is present in my thread-like body. — Identify the phylum and give one example.Non-Chordates
- Q3(viii)(c)माझे शरीर दोन्ही टोकांना निमुळते आहे. मी कल्ल्यांद्वारे श्वसन करतो. माझा वर्ग ओळखून एक उदाहरण लिहा.My body is spindle shaped. I respire with the help of gills. — Identify my class and give one example.Chordates
March 2023
3 q
- Q1(A)(v)Animal with bilateral symmetry is ____.
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Basis of Classification - Q1(B)(iii)To which class does bat belong?Chordates
- Q2(B)(ii)Distinguish between Chordates and Non-chordates.Chordates
March 2022
3 q
- Q1(A)(iii)Human being belongs to ____ class.
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Chordates - Q2(A)(ii)Give scientific reason: Cockroach belongs to phylum Arthropoda.Non-Chordates
- Q3(ii)Write any three characteristics of class Reptilia.Chordates
March 2020
6 q
- Q1(B)(ii)Write the correct co-relation: Annelida : Earthworm :: Platyhelminthes : ____Non-Chordates
- Q1(B)(v)I am connecting link between Reptilia and mammals. What is my name?Chordates
- Q2(B)(ii)Distinguish between Aves and Mammalia.Chordates
- Observe the diagram of the animal given in the paper (a cockroach, with the parts Head, Thorax, Abdomen, Wings and Legs labelled) and answer the following questions.Q3(iv)(a)To which phylum does the animal included in the diagram belong?Non-Chordates
- Q3(iv)(b)What is the exoskeleton made up of?Non-Chordates
- Q3(iv)(c)What is the symmetry?Basis of Classification
March 2019
5 q
- Q1(B)(iv)____________ is a cold-blooded animal.
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Chordates - Q2(iv)State any four benefits of animal classification.Basis of Classification
- Identify my class/phylum and give one example of it.Q3(v)(a)I have mammary glands and exoskeleton in the form of hair.Chordates
- Q3(v)(b)We form the highest number of animals on the planet. We have bilateral symmetry and our exoskeleton is in the form of chitin.Non-Chordates
- Q3(v)(c)I live in your small intestine, my body is long and thread-like and pseudocoelomate.Non-Chordates
March 2018
1 q
- Q1(A)(c)Find the odd one out: Amoeba, Euglena, Planaria, Paramoecium.Basis of Classification
The 10 board questions to practise first
The questions the board asked again come first, most asked first. Each one says how often and when.
Question 1
Asked 2 times: Mar 2023, Mar 2026
Q1(A)(iii)वटवाघूळाचा समावेश ____ वर्गात होतो.Bat is included in class ____________.Tap an option to check your answer.
Question 2
Asked 2 times: Mar 2024, Jul 2024
Q2(A)(ii)शास्त्रीय कारणे लिहा : कासव जमिनीवर आणि पाण्यातही राहते, तरीही त्याचा उभयचर या वर्गामध्ये समावेश करता येत नाही.Give scientific reason: Though tortoise lives on land as well as in water, it cannot be included in class-Amphibia.Question 3 (case study, 3 parts)
Asked 2 times: Mar 2019, Mar 2024* (* = numbers or wording changed that year)
Read the statements and answer accordingly (identify the group and give one example):Q3(viii)(a)माझ्या त्वचेवर कॅल्शियम कार्बोनेटचे काटे आहेत. मी प्रचलनासाठी व अन्न पकडण्यासाठी नलिकापादांचा उपयोग करतो. माझा प्राणीसंघ ओळखा व एक उदाहरण लिहा.Calcareous spines are present on the body. Tube feet are used for locomotion and for capturing prey also. — Identify the phylum and give one example.Q3(viii)(b)मी तुमच्या लहान आतड्यात राहतो. माझ्या धाग्यासारख्या शरीरामध्ये आभासी देहगुहा आहे. माझा समावेश कोणत्या संघात होतो ते सांगून एक उदाहरण लिहा.I live in your small intestine. Pseudocoelom is present in my thread-like body. — Identify the phylum and give one example.Q3(viii)(c)माझे शरीर दोन्ही टोकांना निमुळते आहे. मी कल्ल्यांद्वारे श्वसन करतो. माझा वर्ग ओळखून एक उदाहरण लिहा.My body is spindle shaped. I respire with the help of gills. — Identify my class and give one example.Question 4
This type asked 7 times: Mar 2019, Mar 2020, Mar 2022, Mar 2024, Jul 2024, Mar 2025, Jun 2026. This one: Jun 2026
Q3(iv)कंटकचर्मी प्राणिसंघाची कोणतीही तीन वैशिष्ट्ये लिहा.Write any three distinguishing characters of phylum Echinodermata.Question 5
This type asked 6 times: Mar 2019, Mar 2020, Mar 2022, Mar 2025, Jul 2025, Jun 2026. This one: Jun 2026
Q1(B)(iii)आकृतीत दर्शविलेल्या प्राण्याचा वर्ग लिहा :Identify the class of the animal shown in the given diagram.Question 6
This type asked 6 times: Mar 2020, Mar 2022, Mar 2023, Jul 2024, Mar 2025, Mar 2026. This one: Mar 2026
Q2(A)(ii)शास्त्रीय कारणे लिहा : सरीसृप प्राण्यांच्या शरीराचे तापमान अस्थिर असते.Give scientific reason: Body temperature of reptiles is not constant.Question 7
This type asked 6 times: Mar 2018, Mar 2019, Mar 2023, Mar 2024, Jul 2024, Mar 2026. This one: Mar 2026
Q3(v)खाली दिलेल्या चित्रात दर्शविलेल्या प्राण्यांचे शारीरिक सममितीचे प्रकार ओळखा :Identify the type of body symmetry of the animals shown in the given pictures (A), (B) and (C).Question 8
Asked once: Jun 2026 (same type asked 7 times)
Q2(A)(ii)शास्त्रीय कारणे लिहा : जेलीफिश या प्राण्याबरोबर संपर्क आल्यास आपल्या शरीराचा दाह होतो.Give scientific reason: Our body irritates if it comes in contact with jelly fish.Question 9
Asked once: Jul 2025 (same type asked 6 times)
Q4(ii)खालील चित्रांचे निरीक्षण करून विचारलेल्या प्रश्नांची उत्तरे लिहा : (अ) आकृतीमध्ये दाखवलेल्या प्राण्यांचे वर्ग लिहा. (ब) अनुकूलनाच्या दृष्टीने वरील प्राण्यांमध्ये कोणते साधर्म्य दिसून येते ? (क) या प्राण्यांमध्ये साधर्म्य असून ही त्यांचे वर्गीकरण भिन्न वर्गांत का केले आहे ?Observe the following picture (Fig. A and Fig. B). Write the answers of the following questions: (a) Identify the class of animals shown in above picture. (b) Which similarities are shown in above animals from the adaptation point of view? (c) Why these animals are included in different classes inspite of their similarities?Question 10
Asked once: Mar 2025 (same type asked 6 times)
Q2(B)(ii)फरक स्पष्ट करा : मत्स्यप्राणी वर्ग आणि सरीसृपप्राणी वर्ग.Distinguish between the following: Class Pisces and Class Reptiles.