Echinoderms do not have a respiratory system similar to a person's. Instead, they have a water vascular (otherwise known as "ambulacral") system, made up of a network of canals to move water. This method accounts for the creature's gas exchange, feeding, and locomotion. Because of this characteristic, echinoderms lack gill slits.
Water + Vascular
Echinoderms
Echinoderms
Echinoderms, such as starfish, have basal nerve ganglia that serve as a nervous system. They also have a water vascular system that acts as a circulatory system. They can reproduce, move, and digest food. Therefore, they are animals.
Echinoderms, such as seastars and sea urchins, use their tube feet to move. Tube feet have suction discs which allows the echinoderm to crawl or stick to various surfaces.
echinoderms
Well, to move it is your Skeletal and Muscular system. To breathe it is your Muscular system. To digest is your muscular system and to survive is your Skeletal and some of your muscular system.
allows you to move.
The Muscular System supports the body and allows it to move.
A system that allows energy to move in and out but not mass.
The role in the circulatory system is to pump blood throughout our body in order to breathe and to move.
Echinoderms generally have tube feet and are symmetrical radially. A feature they do not have is lungs to breathe air because they have a water based vascular system.
muscles