class agnatha Flashcards
1
Q
common name and examples
A
jawless fish
- hagfish
- lampreys
2
Q
describe their body
A
- cylindrical, streamlined, up to a meter long
- lack appendages
3
Q
describe their skeleton
A
cartilaginous skeleton (no true bone)
4
Q
describe sensory organs
A
- lateral line detects vibration
- light sensitive eyes
5
Q
how they feed?
A
- parasites on game fish, attach with teeth on tongue
- hagfish: scavengers
6
Q
how they breath
A
gills
7
Q
how they reproduce
A
- external fert
- have both ovaries and testes, only 1 functional
