What is cephalization?What type of body symmetry is found in cephalized animals?Explain the adaptive advantage of cephalization in animals.

1 Answer | Add Yours

trophyhunter1's profile pic

trophyhunter1 | College Teacher | (Level 1) Educator Emeritus

Posted on

Cephalization is the development of a head on an organism's body. Organisms like Porifera or Cnidaria lack a head region. Cephalization is usually found in organisms that are bilaterally symmetrical. These include: the Vertebrates--fish, amphibians, reptiles, birds and mammals. A head region is found in Invertebrates like the arthropods including insects, crustacea and arachnids, in Annelid worms and in Platyhelminthes. Having a head means that usually sense organs are located there and a brain can be found inside the head. This helps to improve an organism's response to stimuli and helps to coordinate and control the body processes.

Sources:

We’ve answered 318,974 questions. We can answer yours, too.

Ask a question