The system is composed of canals connecting numerous tube feet. Echinoderms move by alternately contracting muscles that force water into the tube feet, causing them to extend and push against the ground, then relaxing to allow the feet to retract.
Water enters madreporite and flows through the stone canal and then enters the circular ring canal. Water then is separated into five radial canals that branch into double rows of bulblike structures called ampullae, which are on each side of the ambulacral ridge. The ampullae are connected to suckerlike podia, the entire structure is called a tube foot. Contraction of the ampullae causes the podia to stretch as water is brought into them. This whole process allows for movement, and is quite powerful but extremely slow.
"Madreporite" is another way to say "Sieve Plate"
Water-vascular system.
Water-vascular system.
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Pumps blood around the body, to supply the tissues with oxygen and nutrients and to transport waste products away from these tissues.
Star craft 2 is for the PC system, different types will work with MAC but you have to buy the compatible software.
Vascular plants, which include ferns, flowering plants and seed plants, have adapted to be able to transfer nutrients farther than nonvasculars, which allows them to grow taller and larger. Vascular plants also have a better root system to absorb minerals to support their larger size. if you don't think that a lot of flowering plants would be considered large, compare it with moss. moss grows very low to the ground because it cann't support a larger body.
The heart is the pump of the cardio vascular system, and the arteries and the veins help to circulate the blood around the body
they work with the cardiovascular and circulatory systems
it work with water on it,and cool power of engine
The vascular system signals for blood vessels to constrict or dilate. The nervous system, such as the spine, and the brain, work together to help blood vessels respond accordingly.
Water filtration system can remove contaminants from the water. They also work to remove unwanted minerals from the water and improve clarity.
i hope so