the toe
No, as in most (if not all) sponges, barrel sponges are completely sessile and unable to move locations.
A sponge's defenses are spikes in the sponges body.
Sponges are animals of the phylum Porifera
No, kitchen sponges nowadays are usually made from cellulose or synthetic plastics. Real marine sponges were used by early Europeans to also clean, but it was stopped due to overfishing that almost brought the sponges to extinction.
tube sponges come in many natural colors such as brown, dull green and yes, yellow. secondly tube sponges reproduce by spliting their selves in half. so i guess their only family is the one sponge.
Yes they are.
Nope, there are some that are asymmetrical. Like sponges.
not necessarily .
zooplankton
the toe
porifera
a type of sponge that is purple
345434
They eat bacteria, plankton and detritus.
Porifera is a group of animals that have very simple body plans. They are usually not symmetrical and live in water. They include sponges.
No Animals display different kinds of symmetry. The Radiata include radially symmetrical Ctenophora and Cnidaria (previously Coelenterata). Echinodermata are also largely radially symmetrical. Many other phyla, such as all worm phyla are termed bilaterally symmetrical. Sponges (Porifera) are very primitive and display neither of these types of symmetry. In fact they are usually very irregular and asymmetrical in shape.