the brain is smaller in the shark
the brain is smaller in the shark
Both are close circulatory system.
mammals have closed circulatory system and further double circulatory system.
open circulatory systemclosed circulatory system.
circulatory system
Brown bear have a close circulation system
Their circulartion system is very similar to humans (closed circulatory system)
the shark has a u-shaped stomach with stronger acids
Humans have a closed circulatory system, in which blood is pumped by the heart through dedicated vessels, where it stays contained, as opposed to an open circulatory system (usually found in invertebrates) where blood is pumped out of the heart and vessels.
a closed one
YES.
Tigers are mammals and so their circulatory system is very similar to that of humans.