Listed below are eleven characteristics (i-xi) in Column I and the five classes (a-e) of Chordata in Column II. Match at least two characteristics with each class.
Column I | Column II | ||
i) | Three chambered heart | a) | Pisces |
ii) | Feathers | b) | Amphibia |
iii) | Two-chambered heart | c) | Reptilia |
iv) | Eardrum in a pit | d) | Aves |
v) | Scales | e) | Mammalia |
vi) | External ears | ||
vii) | Gills | ||
viii) | Moist skin | ||
ix) | Horny scales on skin | ||
x) | Homeothermal | ||
xi) | Testes in scrotum |
Class–––––– | Characteristic–––––––––––––––– |
Pisces | Two chambered heart. Scales and Gills. |
Amphibia | Moist skin. Two chambered heart. |
Reptilia | Eardrum in a pit. Horny scales on skin. Three chambered heart. |
Aves | Feathers. Homeothermal. |
Mammalia | Testes in acrotum. External ears. |