When Patton Oswalt lets loose on Twitter (letâs skip the loaded troll descriptor for now), he really digs in and this time he exposed previously unknown depths of reaching when he somehow elicited Breitbart editor Ben Shapiro to inexplicably whine about anti-semitism and generally lose his mind.
Digestive System. Echinoderms have a simple digestive system with a mouth, stomachs, intestineand anus. In many, the mouth is on the underside and the anus on the top surface of the animal. Sea stars can push their stomachs outside of their body and insert it into its prey allowint them to digest the food externally.
The organs of the excretory system are also parts of other organ systems. For example, your lungs are part of the respiratory system. Your lungs remove carbon dioxide from your body, so they are also part of the excretory system. More organs of the excretory system are listed in Table below.