Annelids Flashcards
1
Q
Cephalization
A
Having a head with sense organs and nerves (ganglia)
2
Q
Setae
A
External bristles that aid movement. 2-4 pairs per segment depending on species
3
Q
Organs for digestion
A
Pharynx- obtains food Esophagus- moves food past heart Crop- storage Gizzard- grinds dirt Intestine- absorbs nutrients Anus- excretes waste
4
Q
Organs for respiration
A
Breathe through skin by diffusion
Nephridia- eliminate liquid waste and balance H2O
5
Q
Clitellum
A
Thick area on worm that secretes mucus that sticks worms together, is a medium for sperm travel, and creates a case to protect the young
6
Q
Bodies are?
A
Segmented - segments match each other
