Question

birds and mammals have four-chambered heart. Why?​

Answer 1

Answer:

hope this will help you...please mark me as brainliest ✌

Explanation:

Birds and mammals, however, have a fully septated ventricle--a bona fide four-chambered heart. This configuration ensures the separation of low-pressure circulation to the lungs, and high-pressure pumping into the rest of the body.

Answer 2

Answer:

birds and mammals have four-chambered heart. because they have blood to regulate and only energy used via blood circulation to the cells