Some dont have any at all but most have closed cirrculatory systems.
It matters on the animal. All humans have closed circulatory system, along with a lot of other animals. But other animals have open systems, like insects.
Frogs have a closed circulatory system.
Frogs are amphibians. Amphibians have open circulatory systems. Frogs have closed circulatory systems. Which of these statements is false?
Like all animals, their system is closed.
Closed
Amphibians have closed circulatory system Closed
closed circulatory system
Platypuses have a closed circulatory system.
They have open circulatory system.
They have a closed circulatory system.
No, they have open circulatory system.
No, open circulatory system
closed circulatory system
no
squids have closed closed circulatory systems
The grasshopper has an open Circulatory system.
open circulatory systems