Profera and Cnidaria Flashcards
Which type of animal is classified as Porifera?
Sponges
Radial symmetry
Body parts arranged around central axis
Bilateral symmetry
Body divided into Left and right planes
What is the name for the bilateral plane and how does it help the animal’s function?
Sagittal plane, helps with directional movement
What are animals called with bilateral symmetry?
Bilaterians
What class is sponges in?
Parazoa
What class do animals fall into besides sponges?
Eumetazoa
How many germ layers does Eumetazoa have?
2 or 3
Name for two germ layers and name the layers
Diploblastic - ectoderm and endoderm
Animal with three germ layers. What are they?
Triploblastic
Ectoderm
Mesoderm
Endoderm
Describe the germ layers and basic interior structure of Cnidaria
Diploblastic with tissues but no organs
Define Acoelomate
3 germ layers with no body cavity
Flatworms, flukes and tape worms are what?
Acoelomates : planarians
Define Coelomates
Body cavity is called a coelom that is surrounded by the mesoderm
Pseudocoelomates
A pseudocoelom that forms between the mesoderm and the endoderm during development