69. Sponges and Porifera

Match it! Select the correct answer from the pull down...Good luck!

Spongers is a special protein used to make a sponges ______

There are more than 20,000 species of spongers.

Sponges feed on __________

Sponges have a nervous system.

Sponges can only grow in one spot.

Glass sponges use ________ dioxide to make their skeletons.

Calcarea sponges use calcium to make their skeletons.

Sponges can not change the shape of their body.