Biology JAMB

The key event in the transition of the amphibians from water to land is the?

A. replacement of the gills with lungs
B. possession of webbed limbs
C. limbs
D. possession of tympanic membrane

Correct Answer:

Option A – replacement of the gills with lungs

Explanation

Amphibians display some interesting and changing characteristics as they metamorphose through various forms on their way to adulthood. The frog, for instance, begins life underwater as a larva with gills and becomes and air-breather with lungs as an adult.
&therefore4; in case of draught, frog can amphibians can use lungs to breathe on land

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