Bony Fish Flashcards
(5 cards)
1
Q
Describe the evolution of the lungs and swim bladder?
A
They are both out-pocketings of the foregut
2
Q
Characteristics of osteichthyes
A
Operculum, swim bladder, scales, diverse reproduction
3
Q
Name two classes
A
Actinopterygii: ray fins and Sarcopterygii
4
Q
What are class Actinistia, Dipnoi and tetrapods?
A
Coelocanth, lungfish and organisms with limbs adapted to land
5
Q
Distinct characteristic of Sarcopterygii?
A
Rod shaped bone surrounded by thick muscle: pectoral and pelvic fin
