Fish 2 Flashcards
1
Q
Give examples of Chondrichthyes.
A
Sharks and rays.
2
Q
Name the three lineages of Chondrichthyes.
A
- Squaloid Sharks.
- Galeoid Sharks
- Batoidea (skates and rays).
3
Q
Methods of prey detection in sharks.
A
- Smell
- Taste
- Hearing
- Movement/lateral line
- Vision
- Elecroreception
4
Q
Define lecithotrophy.
A
Yolk supplies most of nutrients to embryo.
5
Q
Define matrotrophy.
A
Female reproductive tract supplies nutrients.
6
Q
Define Chondrichthyes.
A
Cartilaginous fish. 🐠
7
Q
Give features of elasmobranchs.
A
- Male claspers for reproduction
- Internal fertilisation
- Endoskeleton entirely cartilaginous
- central mouth
- Placoid scales.
