Question

कासव जमीनीवर आणी पाण्यात ही राहते, तरीही त्याचा उभयचर या वर्गामोध्ये समावेश करता येत नीही.

Answer 1

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Tortoise live in water as well as on land but still it is not considered as an amphibian, why ??

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First let's know what are Amphibians ??

• Amphibians are the animals which are adapted to live both on land as well as in water.

• Example :- Frogs, Salamanders etc.

★ What are Reptiles ??

• They have scaly and dry skin and lay eggs on land, which are characterized with soft shell.

Example :- Snakes, Lizards etc.

• The the main difference between amphibians and reptiles is the place where they are born or lay eggs.

• In simple words Amphibians lay their eggs in the water, which automatically means amphibians are born in water.

• Reptiles like tortoise lay their eggs on sand (land).

• Turtles first can't be categorised as amphibians as they lay their eggs on land.

Therefore turtles are considered as Reptiles.

Answer 2

★ उत्तर - कासव जमीनीवर आणि पाण्यात ही राहते, तरीही त्याचा उभयचर या वर्गामध्ये समावेश करता येत नाही.कारण - कासव सरीसृप असते.ते जमिनीवर राहत असते त्यावेळी फुप्फुसाने श्वास घेते आणि पाण्यात पोहत असतानाही प्रत्येक श्वासाला नाक पाण्याबाहेर काढून श्वासोच्छवास करते.पाण्यात किंवा जमिनीवर या दोन्ही ठिकाणी त्याला श्वास फुप्फुसानेच घ्यावा लागतो.उभयचर प्राण्यांचे असे नसते.उभयचर प्राणी जमिनीवर फुप्फुसाने श्वास घेतात.आणि पाण्यात ते त्वचेच्या साहाय्याने श्वसन करतात.कासवाच्या अंगावर बाह्यकंकालही असतो.

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