👉 Ctenophora, also known as ctenid or ctenophore, is a group of marine invertebrates that are characterized by their ability to form complex structures called crenelles. These structures can be found on various organisms such as sea cucumbers and sea anemones.
In addition to their unique appearance, the ctenophores have evolved several remarkable adaptations for survival in aquatic environments. Some of these include:
1.
Fascicle Structure
: Catenoph