Lab 4 - Annelida, Nematoda, Panarthropoda Flashcards
1
Q
What do all three phyla have in common?
A
They are part of Protostomia
2
Q
How are the phyla different (broadly)?
A
Annelida is part of Lophotrochozoa, where individuals develop via radial division, whereas Nematoda nand Panarthropoda are part of Ecdysozoa, where individuals form via the molting of the cuticle
3
Q
Metameres
A
Term for segments in annelida, each has its own muscles for movement
4
Q
Septa
A
Prevents fluid from flowing througn metameres, produces hydroskeleton
5
Q
Subgroups of Annelida
A
Errantia and Sedentaria
6
Q
Errantia
A
Possess parapodia for movmeent and have setae
7
Q
Sedentaria
A
Reduced parapodia
8
Q
Clade within Sedentaria and what characterizes it
A
Clitellata, characterized by thikend cells
