<P> The coelom is the main body cavity in most animals and is positioned inside the body to surround and contain the digestive tract and other organs . In developed animals , it is lined with a mesodermal epithelium . In other animals , such as molluscs , it remains undifferentiated . </P>
<P> The coelom is the main body cavity in most animals and is positioned inside the body to surround and contain the digestive tract and other organs . In developed animals , it is lined with a mesodermal epithelium . In other animals , such as molluscs , it remains undifferentiated . </P>
a coelomate animal has a body cavity that is completely lined by what kind of tissue
a coelomate animal has a body cavity that is completely lined by what kind of tissue
mesodermal epithelium
mesodermal epithelium