All creatures have circulatory systems
The circulatory system, like the water system, continually reuses the same materials.
Polar bears have a closed circulatory system(like humans) this means thier blood flows through veins and ateries to diliver oxygen around the body
Poriferans do not have distinct circulatory system. Instead water flow system support all these functions like circulatory, respiratory, excretory etc.
The Circulatory system is a busy system because it can never stop. Your circulatory system is what pumps your blood and gives your cells food water and oxygen and takes waste away from your cells. If your circulatory system ever stopped then you would die.
The human circulatory system moves blood through the body similar to the hydraulic system which moves liquid water.
Nutrient
drink water
closed circulatory system (double circulatory system)
No, plants don't have circulatory systems as we do. Advanced plants such as dandelions do have a vascular system: xylem to carry water up from the roots and phloem to carry sugars down from the leaves, but there is no pump like our heart.
the water
They're both the circulatory system.
Amphibians have closed circulatory system Closed