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Amphibians are the first tetrapods to invade the land. The juvenile phase of the life cycle is dependent on water, where gas exchange occurs through gills. Amphibians have aquatic larval life and terrestrial adult life. Respiration is by gills, lungs and skin. Their body is divisible into head and trunk and skin is moist without scales. The two pairs of limbs are used for locomotion except for caecilians. They are cold blooded animals. Respiration is by gills (in larva), lungs and skin (in adults). Amphibians have a three-chambered heart. Fertilisation is external. However, in Salamander and Ichthyophis fertilization is internal. They are mostly oviparous, except for Salamander, which is viviparous. Development is indirect.Direction : In the following questions the Assertions (A) and Reasons (R) have been put forward. Read both the statements and choose the correct option from the following:Assertion : Amphibians usually hibernate in winter and undergo aestivation in summer.Reason : They are poikilothermic animals.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Amphibians are the first tetrapods to invade the land. The juvenile phase of the life cycle is dependent on water, where gas exchange occurs through gills. Amphibians have aquatic larval life and terrestrial adult life. Respiration is by gills, lungs and skin. Their body is divisible into head and trunk and skin is moist without scales. The two pairs of limbs are used for locomotion except for caecilians. They are cold blooded animals. Respiration is by gills (in larva), lungs and skin (in adults). Amphibians have a three-chambered heart. Fertilisation is external. However, in Salamander and Ichthyophis fertilization is internal. They are mostly oviparous, except for Salamander, which is viviparous. Development is indirect.Direction : In the following questions the Assertions (A) and Reasons (R) have been put forward. Read both the statements and choose the correct option from the following:Assertion : Amphibians usually hibernate in winter and undergo aestivation in summer.Reason : They are poikilothermic animals.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Amphibians are the first tetrapods to invade the land. The juvenile phase of the life cycle is dependent on water, where gas exchange occurs through gills. Amphibians have aquatic larval life and terrestrial adult life. Respiration is by gills, lungs and skin. Their body is divisible into head and trunk and skin is moist without scales. The two pairs of limbs are used for locomotion except for caecilians. They are cold blooded animals. Respiration is by gills (in larva), lungs and skin (in adults). Amphibians have a three-chambered heart. Fertilisation is external. However, in Salamander and Ichthyophis fertilization is internal. They are mostly oviparous, except for Salamander, which is viviparous. Development is indirect.Direction : In the following questions the Assertions (A) and Reasons (R) have been put forward. Read both the statements and choose the correct option from the following:Assertion : Amphibians usually hibernate in winter and undergo aestivation in summer.Reason : They are poikilothermic animals.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer?.

Solutions for Amphibians are the first tetrapods to invade the land. The juvenile phase of the life cycle is dependent on water, where gas exchange occurs through gills. Amphibians have aquatic larval life and terrestrial adult life. Respiration is by gills, lungs and skin. Their body is divisible into head and trunk and skin is moist without scales. The two pairs of limbs are used for locomotion except for caecilians. They are cold blooded animals. Respiration is by gills (in larva), lungs and skin (in adults). Amphibians have a three-chambered heart. Fertilisation is external. However, in Salamander and Ichthyophis fertilization is internal. They are mostly oviparous, except for Salamander, which is viviparous. Development is indirect.Direction : In the following questions the Assertions (A) and Reasons (R) have been put forward. Read both the statements and choose the correct option from the following:Assertion : Amphibians usually hibernate in winter and undergo aestivation in summer.Reason : They are poikilothermic animals.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.

Here you can find the meaning of Amphibians are the first tetrapods to invade the land. The juvenile phase of the life cycle is dependent on water, where gas exchange occurs through gills. Amphibians have aquatic larval life and terrestrial adult life. Respiration is by gills, lungs and skin. Their body is divisible into head and trunk and skin is moist without scales. The two pairs of limbs are used for locomotion except for caecilians. They are cold blooded animals. Respiration is by gills (in larva), lungs and skin (in adults). Amphibians have a three-chambered heart. Fertilisation is external. However, in Salamander and Ichthyophis fertilization is internal. They are mostly oviparous, except for Salamander, which is viviparous. Development is indirect.Direction : In the following questions the Assertions (A) and Reasons (R) have been put forward. Read both the statements and choose the correct option from the following:Assertion : Amphibians usually hibernate in winter and undergo aestivation in summer.Reason : They are poikilothermic animals.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Amphibians are the first tetrapods to invade the land. The juvenile phase of the life cycle is dependent on water, where gas exchange occurs through gills. Amphibians have aquatic larval life and terrestrial adult life. Respiration is by gills, lungs and skin. Their body is divisible into head and trunk and skin is moist without scales. The two pairs of limbs are used for locomotion except for caecilians. They are cold blooded animals. Respiration is by gills (in larva), lungs and skin (in adults). Amphibians have a three-chambered heart. Fertilisation is external. However, in Salamander and Ichthyophis fertilization is internal. They are mostly oviparous, except for Salamander, which is viviparous. Development is indirect.Direction : In the following questions the Assertions (A) and Reasons (R) have been put forward. Read both the statements and choose the correct option from the following:Assertion : Amphibians usually hibernate in winter and undergo aestivation in summer.Reason : They are poikilothermic animals.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer?, a detailed solution for Amphibians are the first tetrapods to invade the land. The juvenile phase of the life cycle is dependent on water, where gas exchange occurs through gills. Amphibians have aquatic larval life and terrestrial adult life. Respiration is by gills, lungs and skin. Their body is divisible into head and trunk and skin is moist without scales. The two pairs of limbs are used for locomotion except for caecilians. They are cold blooded animals. Respiration is by gills (in larva), lungs and skin (in adults). Amphibians have a three-chambered heart. Fertilisation is external. However, in Salamander and Ichthyophis fertilization is internal. They are mostly oviparous, except for Salamander, which is viviparous. Development is indirect.Direction : In the following questions the Assertions (A) and Reasons (R) have been put forward. Read both the statements and choose the correct option from the following:Assertion : Amphibians usually hibernate in winter and undergo aestivation in summer.Reason : They are poikilothermic animals.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of Amphibians are the first tetrapods to invade the land. The juvenile phase of the life cycle is dependent on water, where gas exchange occurs through gills. Amphibians have aquatic larval life and terrestrial adult life. Respiration is by gills, lungs and skin. Their body is divisible into head and trunk and skin is moist without scales. The two pairs of limbs are used for locomotion except for caecilians. They are cold blooded animals. Respiration is by gills (in larva), lungs and skin (in adults). Amphibians have a three-chambered heart. Fertilisation is external. However, in Salamander and Ichthyophis fertilization is internal. They are mostly oviparous, except for Salamander, which is viviparous. Development is indirect.Direction : In the following questions the Assertions (A) and Reasons (R) have been put forward. Read both the statements and choose the correct option from the following:Assertion : Amphibians usually hibernate in winter and undergo aestivation in summer.Reason : They are poikilothermic animals.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Amphibians are the first tetrapods to invade the land. The juvenile phase of the life cycle is dependent on water, where gas exchange occurs through gills. Amphibians have aquatic larval life and terrestrial adult life. Respiration is by gills, lungs and skin. Their body is divisible into head and trunk and skin is moist without scales. The two pairs of limbs are used for locomotion except for caecilians. They are cold blooded animals. Respiration is by gills (in larva), lungs and skin (in adults). Amphibians have a three-chambered heart. Fertilisation is external. However, in Salamander and Ichthyophis fertilization is internal. They are mostly oviparous, except for Salamander, which is viviparous. Development is indirect.Direction : In the following questions the Assertions (A) and Reasons (R) have been put forward. Read both the statements and choose the correct option from the following:Assertion : Amphibians usually hibernate in winter and undergo aestivation in summer.Reason : They are poikilothermic animals.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice NEET tests.