Phylum Annelida Flashcards Preview

BIO 1108 > Phylum Annelida > Flashcards

Flashcards in Phylum Annelida Deck (11):
1

what groups comprise annelida?

segmented worms
-earthworms
-leeches
-clamworms

2

characteristics of annelids?

-terrestrial and aquatic
-coelomates
-triploblastic
-hydrostatic skeleton
-hermaphrodites

3

scientific name for earthworm

oligochaeta

4

scientific name for leech

hirudinea

5

scientific name for clamworm

polychaeta

6

nervous system of annelids

-well developed central nervous system
-ventral nerve cord
-simple brain

7

what are parapodia and chaetae?

help with traction during movement (some groups have this, polychaeta)
-lateral extensions (parapodia) with bristles (chaetae)

8

what is the clitellum? (on earthworms)

secretes mucous that holds 2 worms together during mating and produces a cocoon

9

what are chaetae?

short bristles

10

what are nephridiopores?

tiny pores (allow nephridia to excrete nitrogenous waste)

11

what are septa?

thin partitions between each segment