Deuterostomes 1 Flashcards
1
Q
Define Triploblastic.
A
Three cell layers.
2
Q
Name the three cell layers of triploblasts.
A
Ectoderm, endoderm and mesoderm.
3
Q
What lines the coelom?
A
Peritoneum.
4
Q
Define indeterminate development.
A
Fate of cells not fixed until a late stage of morphogenesis.
5
Q
Name the three phyla of deuterostomes.
A
- Hemichordata
- Echinodermata
- Chordata
6
Q
What are the general characteristics of deuterostomes?
A
- Radial cleavage
- Blastopore forms anus
- Triploblastic, coelomate
- Enterocoelous development
- Indeterminate development
7
Q
What are the subphyla of Chordata?
A
- Urochordata
* Celphalochordata
8
Q
What are Hemichordata?
A
Acorn worms.
9
Q
What are Urochordata?
A
Tunicates.
10
Q
What are cephalochordata?
A
Lancelets.
