Leather star (Dermasterias imbricata)—
All sea stars have a relatively simple excretory system. Organisms move waist products via specialized cells to an area called the "tube feet" where diffusion occurs and it is exchanged as urine. Sea stars lack organs with the purpose of excitation
All sea stars have a relatively simple excretory system. Organisms move waist products via specialized cells to an area called the "tube feet" where diffusion occurs and it is exchanged as urine. Sea stars lack organs with the purpose of excitation
Melon sea urchin (Echinus melo)--
Sea Urchins have two method of excitation. The first entails liquid waist products being released though pours on the exterior of the urchin's body. In the second process, after nutrients are absorbed from food, the waist products travel thought the larynx, and the small intestine before exiting the body through the ainus.
Sea Urchins have two method of excitation. The first entails liquid waist products being released though pours on the exterior of the urchin's body. In the second process, after nutrients are absorbed from food, the waist products travel thought the larynx, and the small intestine before exiting the body through the ainus.
Read Sea Cucumber (Parastichopus californicus)—
Sea Cucumbers process food and absorb nutrients before sending waist products to the phalanx, small intestine, and ainus. The small intestine wraps around the exterior of the organism, with the ainus being at the end.
Sea Cucumbers process food and absorb nutrients before sending waist products to the phalanx, small intestine, and ainus. The small intestine wraps around the exterior of the organism, with the ainus being at the end.