chapter 2 vertebrates Flashcards
Vertebrates
An animal with a backbone.
Cartilage
A soft material found in vertebrate skeletons.
Vertebrates
One of the bones or blocks of cartilage that make up a backbone.
Gill
A structure used by some animals to breathe in water.
Swim bladder
A gas-filled organ then allows a bony fish to move up and down in water.
Amphibian
A vertebrate that lives at first in water and then on land.
Metamorphosis
A major change in from that occurs as some animals develop into adults.
Reptile
An egg laying vertebrate that breathes with lungs.
Cold-blooded
Having a body temp that changes with temp of surroundings.
Warm-blooded
Having a body temp that stays the same.
Mammary gland
A milk producing structure on the chest or abdomen on the mammal.