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Chapter 1

invertebrate an animal without a backbone
sponge a simple invertebrate that has a hollow
cnidarian an invertebrate with stinging cells on the ends of tentacles
mollusk an invertebrate that has a soft body and a shell
echinoderm a spiny skinned invertebrate
endoskeleton an internal supporting structure
arthropod an invertebrate with jointed legs, a body that is divided into sections, and an exoskeleton
exoskeleton a hard covering that protects the bodies of some invertebrates
amphibian a cold blooded vertebrate that spends part of its life in water and a part of its life on land
bird a vertebrate that has a beak, feathers, two wings and two legs
mammal a warm blooded vertebrate with hair or fur; female mammals produce milk to feed their young
cold blooded a type of animal that gets its heat from outside its body
reptile a cold blooded vertebrate that has scaly waterproof skin breathes air with lungs and lays eggs
vertebrate an animal with a backbone
warm blooded a kind of animal whose body temperature does not change much
nervous system the set of organs that use information from the senses to control all body systems
muscular system the organ system made up of muscles that help the body move
excretory system the organ system that removes wastes from the body
skeletal system the organ system made up of bones that support the body
digestive system the organ system that breaks down food for fuel
circulatory system the organ system that moves blood throughout the body
respiratory system the organ system that brings oxygen to body cells and removes waste gas
Created by: amygor34