Question | Answer |
Vertebrate | An Animal with a backbone made of vertebrae, or sometimes, cartilage |
Chordate | Animals which AT SOME POINT in their lives had a notochord, a nerve cord, and pharyngeal slits |
Cartilage | Flexible, strong, connective tissue (A few vertebrates have this as a backbones rather than bone) |
Endoskeleton | Internal skeleton that supports and protects the body, gives it shape, and provides a place for muscles to attach |
Ectotherm | An animal whose body temperature does not maintain a steady temperature on its own. These animals temperatures' go up and down depending upon the temperature of their environment. Ex: lizard, frog, fish |
Endotherm | An animal whose body controls and regulates its body temperature from within, by controlling the heat it produces/releases Ex: humans, rabbits, birds |
Fish | An ectothermic vertebrate that lives in water, has fins and scales, ans breathes with gills |
Cartilaginous | Made of cartilage |
Swim Bladder | An internal gas-filled sac that helps stabilize a fish at various depths |
Buoyant force | the upward force exerted by water on an object or organism in or on it |
Amphibian | an ectothermic vertebrate that spends its early life in water and its adult life on land. Means "Double life" |
Atria | the upper chambers of the heart |
Ventricle | The lower chamber of the heart |
Habitat | the specific environment in which an organism lives |
Reptile | an egg laying, ectothermic vertebrate that has lungs and scaly skin |
Kidney | organs that filter waste from the blood |
urine | watery fluid containing waste filtered from the blood that is excreted from the body of an animal |
Dewlap | flap of loose skin under the head of a male reptile (Can be expanded when courting or defending territory) |
Kilogram | metric unit used for mass or weight |
incubation | period during which an organism develops inside an egg |
Fossil | the hardened remains or other evidence ofa living thing that existed a long time in the past |
sedimentary rock | rock made of hardened layers of sediment |
paleontologist | scientists who study extinct organisms by studying their fossil remains and comparing them to present-day organisms |
Amber | a hard yellowish to brownish fossil resin formed by tree sap |
Three fish types | Bony fish, Cartilaginous fish, Jawless fish |
Example of Bony fish | Trout, Flounder, Rainbow |
Example of Cartilaginous fish | Shark |
Example of Jawless fish | Lamprey |
Characteristics of fish | Scales, Gills, Ectotherm, Fins |
Characteristics of Amphibians | Atria, ventricles, ectotherm, vertebrate, lungs as adults, gills as larvae |
Characteristics of Reptiles | One lung, eyelids (lizards), eggs with leathery shells, external ears (lizards), lays eggs on land, scaly skin |