Invertebrates (What are they? (Characteristics (They have bilateral or…
What are they?
They are animals without backbone
They have bilateral or radial symmetry and asymmetry
The presence or not of skeleton structure
Outer or inner shell
They feed by filtration. Because the nutrients
pass through the walls to the sponge.
Have tiny spores that are connected
The skeleton is made of a material called spongin
Have a sac-like body.
They have structure for pass the substances.
Have an umbrella-shaped body
Like polyps have a holle to save substances
All have tentacles.