Question

B. Select the animal having venous heart.
a. Crocodile
b. Salamander
c. Rohu
d. Toad​

Answer 1

● From the below given options in the question the animal which have venous heart is toad option d.

● Venous heart is the type of heart which has both Atrium that is auricle and ventricle.

● The ventricle consists of Vena cava which pump deoxygenated blood to lungs from the ventricle.

● Toad is the common name given for amphibians like frogs. And mature chamber system in heart starts from amphibians.

Answer 2

Toad is the animal which has a venous heart.  

Option (d)

Explanation:

• The frog or toad’s heart is the three-chambered heart and the human heart is the four-chambered heart. In the toad, there is no division of the oxygenated and the deoxygenated blood flow in the heart.
• Frog’s heart has two chambers like Sinus Venosus to receive blood from the body and the Conus arteriosus for the blood pass from the heart to the body. But the human heart does not have these chambers.
• Blood from the body directly enters the right auricle and pumped out by the two ventricles.

To know more

Scientific name of toad​

https://brainly.in/question/11528117

What is the difference between toads and frogs?

https://brainly.in/question/3495648