Phylum Facts
What traits made scientists think Phylum Porifera were not animals?
Immobile; No true tissue development
True or False: Spongin skeletons are dried and used commercially
True
What is the size range of a sponge?
0.5 cm to 2 m
What made scientists realize sponges were animals (2 things)?
What were spongin skeletons used as?
Washing sponges
Where are sponges found?
Warm, marine waters
What does "Porifera" mean?
Pore bearer
What are spongin skeletons still sometimes used for?
Sponge painting
Do fresh water sponges exist?
Yes
True or False: Sponges are one of the oldest multicellular species
True
How many different sponge species are there?
Roughly 9000
Is a Grantia a freshwater or saltwater sponge?
Fresh water
Fossils suggest that sponges may be roughly _____ years old
600 million
True or False: The animal sponge was named after the bath sponge
False; Bath sponge named after animal
How many cell layers does a sponge have?
2