blood
starfish are cool and should have organ systems cause organ systems are also cool
Nope - they lack any internal skeleton - and so are invertebrates.
Starfish generally do not have contact with other starfish. However, biologists have proven that during the breeding season, starfish send out signals when they are ready to reproduce. This causes the starfish to congregate during this time period.
What organ systems do echinodermes lacking
The lack of the fundamental facilities and systems serving a country or area
Earthworms and cockroaches have nervous systems but no brain. Hydras have a nervous system consisting of a nerve net but lack a centralized brain. Amoebas do not have a nervous system or a brain.
Starfish and turtles are both marine animals, but they are not closely related. They belong to different phylogenetic groups: starfish are echinoderms while turtles are reptiles. Both have adaptations for living in the water, such as their streamlined bodies and specialized respiratory systems.
there are cusion starfish, reef starfish, spiny starfish and fire brick starfish in new zealand.
It is called toilet water.
A brain.
Smoking, lack of exercise, lack of attention to Asthma, and exposure to irritants such as dust can all affect the performance of the respiratory and circulatory systems.
Smoking, lack of exercise, lack of attention to Asthma, and exposure to irritants such as dust can all affect the performance of the respiratory and circulatory systems.