Fish Flashcards
1
Q
Swim bladder
A
lung equivalent
2
Q
Physostomous
A
- connected to the gut
- fish swallow air
3
Q
Physoclistous
A
- not connected to gut
- gas added/removed from blood
4
Q
Evidence from parasites: How do freshwater animals evolve from marine ancestors?
A
Parasites suggest freshwater rays in altlantic drainages are related to marine rays in pacific, not atlantic
