Amphibians do not have the following
(a) Three chambered heart
(b) Gills or lungs
(c) Scales
(d) Mucus glands
Answer- (c)
Solution- Amphibians are the organisms that live on both land and water. They have 3 chambered heart (2 auricles and 1 ventricle). They contain mucus glands which makes their body slimy. Gills and lungs are present for respiration. They do not contain scales.
The correct answer is- c) Scales