THE BRAIN AND THE HEART WHICH IS MORE INPORTANT TO MAMMALS

in #science7 years ago

PUZZLE_20180603_172751.jpg THE BRAIN
According to MacLean (1990), the limbic system of this mammalian brain is the center of emotion and learning.
THE HEART
The heart is a complex muscle that pumps blood through the three divisions of the circulatory system and the center of circulation