Lecture 8 Flashcards
(35 cards)
what are the classes of the phylum annelida
- errantia
- sedentaria
what is the types animals in the class errantia
free living worms with a polychaete body plan
what are the types of animals in the class sedentaria
- sedentary tube or burrow dwelling worms with a polychaete body plan
- free living segmented worms with an oligochaete body plan
what phylum is the class sedentaria in
annelida
what phylum is the class errantia in
annelida
what does polychaete mean
many hairs
what does oligochaete mean
few hairs
what does achaete mean
no hairs
in annelida, do polychaetes have lateral appendages
yes, parapodia
in annelida, do polychaetes have setae
yes
what are setae
little hairs
in annelida, do polychaetes suckers
no
in annelida, do earthworms have setae
yes
in annelida, do earthworms have lateral appendages
no
in annelida, do earthworms have suckers
no
in annelida, do leeches have lateral appendages
no
in annelida, do leeches have setae
no
in annelida, do leeches have suckers
oral and posterior
what is metamerism
the body is divided into a longitudinal series of segments
during annelid development, new segments are added where
- the teloblastic growth zone
- the bum
in annelids, where is the anus located
the pygidium
based on the germ layers of annelids, how are they classified
triploblastic coelomates
in annelids, where is the mouth located
the peristomium
