Blog

Cnidarians do not have a true nervous system.

The free swimming larva of Cnidarians is the 

Contractile pinacocytes that can regulate water circulation in some sponges are called 

What terms means NO tissues or organs?

Most sponges display _________ symmetry.

Cnidarians have ___________ with cnidocytes.

Gastrodermal glands secrete _______ and ______ to turn food into a soupy broth.

Hydroid jellyfish is a term for

Freshwater (and some marine) sponges form resistant structures which function in asexual reproduction, called 

This group of animals does not possess embryological tissue layers.