Which of the following is false about the frog?
I. Eyes are bulged out and covered by a nictitating membrane that protects them while in water
II. On either side of the eyes a membranous tympanum (ear) receives sound signals
III. The forelimbs and hind limbs help in swimming, walking, leaping and burrowing
IV. The hind limbs end in five digits and they are larger and muscular than fore limbs that end in four digits
V. Feet have webbed digits that help in swimming
VI. Frogs exhibit sexual dimorphism
1. Only I and VI
2. Only III
3. Only IV and V
4. None
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Subtopic: Frogs: Morphology |
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One of the main function of frog's skin is-
1. Diffusion of respiratory gases
2. Absorption of ultraviolet rays to produce vitamin D
3. Storage of excess food in the form of subcutaneous fat
4. Excretion of nitrogenous waste in the form of uric acid
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Subtopic: Frogs: Anatomy (Respiratory System) |
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Which of the following is false about the respiration of frog?
1. Frogs respire on land and in water by the same method
2. In water, skin acts as aquatic respiratory organ (Cutaneous respiration)
3. Dissolved oxygen in water is exchanged through the skin by diffusion
4. On land, the buccal cavity, skin and lungs act as respiratory organs
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Subtopic: Frogs: Anatomy (Respiratory System) |
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