Frogs heart when taken out of the body continues to beat for some time. Select the best option from the following statement.
(a) Frog is a poikilotherm.
(b) Frog does not have any coronary circulation.
(c) Heart is ‘myogenic’ in nature.
(d) Heart is autoexcitable.
Option 1 : Only (c)
Option 2 : Only (d)
Option 3 : (a) and (b)
Option 4 : (c) and (d)
