| A | B |
|---|
| gill slits | paired openings used for breathing |
| endotherm | vertebrates with a constant body temperature |
| endoskeleton | the internal skeleton |
| spawning | males swim over the eggs and release sperm |
| ectotherm | body temperature changes with environment |
| amphibian | ectothermic land and water animal |
| swim bladder | structure that allows a fish to go up or down in the water |
| reptile | an ectothermic animal with dry skin |
| scales | hard, thin, overlapping plates used for protection |
| fins | fan-like steering structures in fish |
| adaptatiion | makes an organism better able to survive its environment |
| cartilage | tough, flexible tissue |
| Vertebrae | Bones that form a spinal column or backbone |
| Exoskeleton | Bones that are on the outside of the body |
| Appendages | Things that stick out from the main part of the body |
| Agnatha | The jawless fish |
| Osteichthyes | Bony Fish |
| Mammals | Animals with hair and mammary glands |
| Aves | The name of the group birds belong to |
| Chondrichthyes | The cartilaginous fish |
| Lamprey is an example of this group | Agnatha |
| Sharks are examples of this group | Chondrichthyes |
| Animals that breathe through their skin and have lungs | Amphibians |
| Animals with leathery skin that they cannot breathe through | Reptiles |
| Group of vertebrates that is well known for its metamorphosis | Amphibians |
| Group that has hearts that are almost 4 chambers | Reptiles |
| Lateral Line | Pressure gauges on fish |
| Animals that eat meat only | Carnivore |
| Animals that eat plants only | Herbivore |
| Animals that eat meat & Plants | Omnivore |
| Nocturnal | Term that describes animals that function mostly at night |
