Osteichthes / Class Sarcopterygii / Class Actinopterygii

Question 1

Osteichthyes

“Ostei-“

Answer 1

Bony

Question 2

Osteichthyes

“-ichtyes”

Answer 2

Fish

Question 3

Osteichthyes

This group has either ___ ___ or ___

Answer 3

Swim bladder or lungs

Question 4

Osteichyes =

Answer 4

Class Sarcopterygii and Class Actinopterygii

Question 5

Class Sarcopterygii

Common name

Answer 5

Lung fishes

Coelacanths

Question 6

Class Sarcopterygii

Dominant tissue in their skeleton?

Answer 6

Bone

Question 7

Class Sarcopterygii

How many heart chambers?

Answer 7

2 heart chambers

Question 8

Class Sarcopterygii

How do they control their body temperature?

Answer 8

Ectothermic

Question 9

Class Sarcopterygii

Scale type?

Answer 9

Ganoid cells

Living, vascularized, layered

Question 10

Class Sarcopterygii

Respiratory structures?

Answer 10

Gills or lungs

Question 11

Class Sarcopterygii

Fertilization type?

Answer 11

Internal
Ovoviviparous
Oviparous

Question 12

Class Sarcopterygii

What do they have in their fins?

Answer 12

Muscular lobes

Muscle+bone

Question 13

Class Sarcopterygii

Why do some have lungs?

Answer 13

Live in ephemeral pools.
A body of water that doesn’t last all year.
Dries up in dry season
Use the lungs to breathe

Question 14

Class Sarcopterygii

Tail type?

Answer 14

Diphycercal tail

Question 15

Class Sarcopterygii

What are the 3 main groups?

Answer 15

Lungfishes
Coelacanths
Osteolepiforms

Question 16

Class Sarcopterygii

How many genera of lungfishes?

Answer 16

3 genera

Question 17

Class Sarcopterygii

How many species of coelacanths?

Answer 17

2 spp- 1938, 1977

Question 18

Class Sarcopterygii

Osteolepiforms are extinct but they might be ancestors of ___ and all ___

Answer 18

Amphibia

Tetrapods

Question 19

Class Actinopterygii

Common name?

Answer 19

Ray-finned fishes

Question 20

Class Actinopterygii

Dominant tissue in their skeleton?

Answer 20

Bone

Question 21

Class Actinopterygii

How many heart chambers?

Answer 21

2

Question 22

Class Actinopterygii

How do they control their body temperature?

Answer 22

Ectothermic

Question 23

Class Actinopterygii

Scale type?

Answer 23

Cycloid or Ctenoid scales

Living, layered, vascularized, and flexible

Question 24

Class Actinopterygii

Respiratory structure?

Answer 24

Gills

Question 25

Class Actinopterygii

Fertilization type?

Answer 25

Internal and External fertilization

Question 26

Class Actinopterygii

Internal fertilization are

Answer 26

Ovoviviparous

Question 27

Class Actinopterygii

External fertilization are

Answer 27

Oviparous

Question 28

Class Actinopterygii

Synapomorphy

Answer 28

Swim bladder

Question 29

Class Actinopterygii

2 main groups?

Answer 29

Chondrosteans

Neopterygiiams

Question 30

Class Actinopterygii

How many Chondrosteans spp are extant?

Answer 30

25 spp

Question 31

Class Actinopterygii

Chondrostean adults live in ocean and spawn in freshwater

Answer 31

Anadromous

Question 32

Class Actinopterygii
Chondrosteans
All species of ___ are endangered

Answer 32

Sturgeons

Question 33

Class Actinopterygii

Chondrosteans tail type?

Answer 33

Heterocercal

Question 34

Class Actinopterygii

How many Neopterygiian spp are extant?

Answer 34

20,000+

Question 35

Class Actinopterygii

Neopterygiian tail type?

Answer 35

Homocercal