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Tympanum in frogs is _____ that helps in _____
Option: 1
Cartilaginous ear; balance
Option: 2
Cartilaginous ear; hearing
Option: 3
Membranous ear; balance
Option: 4
Membranous ear; hearing
Answers (1)
Morphology of Frog
- The body of a frog is divisible into the head and trunk.
- A neck and tail are absent.
- Above the mouth, a pair of nostrils is present. Eyes are bulged and covered by a nictitating membrane that protects them while in water.
- On either side of the eyes, a membranous tympanum (ear) receives sound signals.
- The forelimbs and hind limbs help in swimming, walking, leaping and burrowing.
- The hind limbs end in five digits and they are larger and more muscular than the forelimbs which end in four digits.
- Frogs exhibit sexual dimorphism.
- Male frogs can be distinguished by the presence of sound-producing vocal sacs and also a copulatory pad on the first digit of the forelimbs which are absent in female frogs.
- A membranous tympanum (ear) receives sound signals in frogs.
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