vertebrates and invertebrates

• jawless fishes

  • cold-blooded animals thatlive in water
  • no bone structure and sole support is notochord
• cartilaginous fishes

  • cold-blooded animals that live in water
  • rings of cartilage known as vertebrae
  • sharks, rays
• bony fishes

  • cold-blooded animals that live in water
  • skeleton is made of bone
  • salmon, cod
• amphibians

  • cold-blooded animals that live some part of their life on land
  • egg to larvae to adult in water
  • larvae uses gills then replaced by lungs
  • toads, frogs, salamanders
• reptiles

  • cold-blooded animals with an outer covering of scales to prevent their body from drying out
  • lay eggs
  • snakes, crocodiles, alligators
• birds

  • warm-blooded animals whose body is covered with feathers
• mammals

  • warm-blooded, milk-secreting
  • highly developed brains
• porifera

  • simple, multicellular with no distinct organs
  • sponges
• cnidaria

  • symmetrical animals with tentacles encircling the mouth at one end of the body
  • jellyfish, hydra, coral
• ctenophora

  • eight rpws of cilia
  • sea walnuts, comb jellies
• platyhelminthes

  • worms with no anus or circulatory system
  • flatworms, tapeworms
• echinodera

  • tiny worms with spiny bodies
• nematoda

  • round worms
  • most diverse and geographically widespread
• mollusks

  • water and land
  • hard shell that protects a soft body
  • radula - rows of teeth to scrape food
• annelida

  • segmented worms
  • earthworms
• arthropoda

  • largest
  • exoskeleton is made of chitin
  • ants, beetles, shrimp
• echinodermata

  • body can be divided into 5 prts
  • sea urchins