Chapter 25.3: A Closer Look at Bony Fish

Question 1

Ray-finned fish [();()] have fins supported by fan-shaped bones called a ()

Answer 1

goldfish; tuna; ray-fin

Question 2

Ray-fin:

Answer 2

Embedded in a thin layer of skin and connective tissue

Question 3

The arrangement of () and () make the fin light and easy to move

Answer 3

bones; muscles

Question 4

Ray-finned fish are the most diverse group of living (), making up nearly half of all vertebrate species

Answer 4

vertebrates

Question 5

Long Torpedo-Shaped Fish:

Answer 5

Ambush predators that can accelerate quickly and surprise their prey (Barracuda)

Question 6

Fish that are flattened from side to side:

Answer 6

Cannot swim quickly, but are maneuverable; found in coral reefs or algae beds (butterflyfish)

Question 7

Fish that feed on surface water:

Answer 7

Have flattened heads and mouths that point up; this body plan allows them to slurp up invertebrates without being noticed (killifish)

Question 8

Flatfish:

Answer 8

Flat-shaped lie on the seafloor waiting for their prey to swim by (plaice)

Question 9

Some slow fish:

Answer 9

Use camouflage to hide from predators or prey (sea dragon)

Question 10

Most ray-finned fish have () modified into a buoyancy organ called a ()

Answer 10

lungs; swim bladder

Question 11

Swim Bladder:

Answer 11

Helps a fish float higher or lower in the water

Question 12

Swim bladders help the fish save ()

Answer 12

energy

Question 13

Some ray-finned fish have (); they still have () but they can breathe air and survive out of water for hours (bichir) [ found in ()]

Answer 13

lungs; gills; west africa

Question 14

Only () species of lobe-finned fish remain today, but they first appeared 440 million years ago

Answer 14

7

Question 15

Lobe-fins:

Answer 15

Paired pectoral and pelvic fins that are round in shape

Question 16

Lobe-fins are arranged around a branching series of () [similar to limbs of land vertebrates]

Answer 16

bony struts

Question 17

Lobe-fins cannot change () as quickly as ray-fins can, they provide less maneuverability in the water, but can excellently support the ()

Answer 17

shape; weight

Question 18

() and () are 2 of 7 species of lobe-fish that still exist today

Answer 18

Coelacanths; lungfish