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Casteel Vertebrates


__________ are animals with a backbone. vertebrates
Less than _____ % of animals are classified as vertebrates. five
Fish live in ________________. water
Fish have ____________ to take in Oxygen from water. gills
Fish reproduce using __________________ eggs. jellylike
Fish have ______________ on their skin. scales
_________________ have smooth skin. amphibians
Amphibians spend part of their life in water and part on _________. land
Amphibians and reptiles have _____________ heart chambers. three
Reptiles have ___________ skin. - scaly
Most ______________ live on land, but some live in water. reptiles
_________% of vertebrates are reptiles. fourteen
Reptiles reproduce by laying _______________ eggs. leathery
___________ are vertebrates that have hair or fur on their bodies for a skin covering. Mammals
Mammals drink ________________ from their mother's body. milk
____________ are vertebrates with feathers and wings. birds
Most birds can ____________. fly
Birds reproduce by laying ___________-shelled eggs. hard
Created by: lkcasteel