Heart in the amphibia is…..chambered.
a) one
b) two
c) three
d) four
Explanation: two auricles and one ventricle
Along with two auricles and one ventricles, ………is/are present in amphibians which are considered as additional chamber/s.
a) truncus arteriosus
b) sinus venosus
c) both a and b
d) none of them
Explanation: their circulatory system is not perfect as mixing of oxygenated and deoxygenated blood takes place in the ventricle
Most amphibians hibernate during ……..
a) summer
b) winter
c) autumn
d) spring
Explanation: they dig deep in the mud and survive by getting energy from fats
Which of the following are the examples of amphibians?
a) frog and toads
b) salamanders and newts
c) necturus and cacilians
d) all of these
Explanation: The national amphibian of Pakistan is Bufo stomaticus
Which of the following are tailed amphibians?
a) salamanders
b) newts
c) necturus
d) all of these
Explanation: toads and frogs are tailless amphibians
Class Reptilia:
