What is the term for gathering detritus from the water and ingesting it
Filter feeding
What does Porifera mean?
Pore bearer
Sponges reproduce by :
Sexually : eggs and sperm
Asexually : budding and cloning
What significance do sponges have in the ecosystem
They filter and clean their surrounding water
What does Cnidaria mean?
Having stinging cells
What is the body plan of a cnidarian ?
Include symmetry, and the 3 layers
Radially symmetric
Outer: epidermis
Middle: mesoglea
Inner: gastrodermia
In the Cnidaria , what layer is responsible for movement?
Mesoglea
What is the nematocysts ?
The stinging cell for a Cnidaria
What is a Platyhelminthes ?
Flatty patty
A flat worm
What type of symmetry does Platyhelminthes have ?
Bilateral
Define triploblastic
Having 3 tissue layers
What helps to form true organs ?
Mesoderm
Most Platyhelminthes carry out what type of symbiosis
Parasitic
What means little ring
Annelida
What are the characteristics of an Annelida ?
Bilateral One way digestive system Closed Circulatory system Has segments Has setae that helps with movement
Anyhropoda means
Jointed foot
What skeleton is a protective body armor
Exoskeleton
How do arthropods grown
Metamorphosis
what term means “soft bodied”
mollusca
how is a radula used
it is used to scrape algae and other foods off of rocks to be swallowed
what is a mollusk shell made of?
calcium carbonate
