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Frogs are oviparous, meaning they lay eggs that hatch into tadpoles.
Ref: NCERT Class 11 Biology Chapter 7: Structural Organisation in Animals Frog - Anatomy - Nervous System Sense Organs and Reproductive System
Male frogs have vocal sacs that help them produce mating calls to attract females.
Ref: NCERT Class 11 Biology Chapter 7: Structural Organisation in Animals Frog - Anatomy - Nervous System Sense Organs and Reproductive System
Most amphibians exhibit external fertilization, where eggs are laid in water and fertilized outside the female's body.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Vertebrata - Amphibia and Reptilia
Amphibians lay non-amniotic eggs, usually in water, unlike reptiles, birds, and mammals, which lay or develop amniotic eggs.
Ref: NCERT Class 11 Biology Chapter 4: Animal Kingdom Vertebrata - Amphibia and Reptilia
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