Frog’s heart when taken out of the body continues to beat for sometime. <br> Select the best option from the following statements. <br> (a) Frog is a poikilotherm <br> (b) Frog does not have any coronary circulation <br> (c) Heart is “myogenic” in nature <br> (d) Heart is autoexcitable

Question

( A ) (c) and (d)
( B ) (a) and (b)
( C ) Only (d)
( D ) Only (c)