Section 6 - Animals Flashcards
1
Q
What are the basic characteristics of kingdom Animalia?
A
Eukaryotic
Heterotrophic
Multicellular
No cell walls
2
Q
What are the major traits of an animal?
A
Presence of tissues
Symmetry
Body cavity
Embryonic development
Segmentation
3
Q
What are the three types of body structures? (Body cavity wise)
A
Acoelomate
Pseudocoelomate
Coelomate
4
Q
What are the characteristics of a sponge?
A
No tissues
Asymmetric
5
Q
What are the characteristics of Cnidaria?
A
Radial symmetry
Sac like gut
Stinging cells
2 body types
6
Q
When does bilateral symmetry evolve?
A
Platyhelminthes
7
Q
What was the first deuterostome?
A
Echinodermata