What type of circulatory system does a rabbit have?

The circulatory pattern,in which blood pumped by the heart passes through large vessels into open spaces or body cavities called sinuses,is called $.......$ and it is found in $........$

Which of the following represents the correct pathway of blood circulation in the human body?

What is the circulatory system called that begins and ends in capillaries?

Assertion $(A)$: In humans,a hepatic portal system is present.
Reason $(R)$: The hepatic vein carries blood from the intestine to the liver.

What type of circulatory system is present in a frog?