Lab 10 Aquatic vertebrates Flashcards
1
Q
Chordates
Subphylum
A
Vertebrata
2
Q
Chordates
Infraphylum
A
Agnatha
3
Q
Chordates
Infraphylum
A
Gnathostomata
4
Q
Class chondrichthyes
A
Shark
5
Q
jawed vertebrates with skull and teeth large oily liver used for
A
digestion and buoyancy
6
Q
Infraphylum Gnathostomata
Class Chondrichtyes
A
- Jawed vertebrates
- ~850 species described
7
Q
Infraphylum Cnathostomata
Tessellated Cartilaginous Skeleton
A
- Cartilage is overlain by a superficial rind of abutting, mineralized, hexagonal blocks
8
Q
Infraphylum Gnathostomata
Lateral line system
A
- used to sense changes in water pressure and sound waves
9
Q
Infraphylum Gnathostomata
Ampullae of lorenzini
A
Gel filled capsules used for sensing electric fields (electroreception)
10
Q
Super class
A
- Osteichthyes
- class Actinopterygii
11
Q
Amphibians
Amphibians Eggs
A
- Similar in structure to fish eggs
- No hard shell or membrane
- Gelatinous covering permeable to gases and liquids
- Usually laid in water or mosit places (prone to dying out)
- External or internal fertalization
12
Q
phases
A
A) Tadpole
B) During metamorphosis
C) mating adults
