Walk, run, fly, swim, or slither in to learn more about the animal kingdom! Click the star to go to the review page. Click the star to go to the review page. Fish have a backbone and are vertebrates. They have gills and scales. Fish are cold-blooded and live in the water. Click the smiley face to return to the list of vertebrates. Reptiles have scales and they are cold blooded. All reptiles have a backbone. Some species of reptiles lay eggs and some give birth to live young. Click the smiley face to return to the list of vertebrates. Amphibians have backbones and are called vertebrates. Amphibians are also cold blooded. Most amphibians have smooth skin. Some amphibians lay eggs and some give birth to live young. Click the smiley face to return to the list of vertebrates. Birds are vertebrates because they have a backbone. All birds have feathers and they are warm blooded. Bird bones are hollow, and most birds can fly. All birds lay eggs, though not all eggs are laid in a nest. Click the smiley face to return to the list of vertebrates. Mammals are vertebrates because they have a backbone. All mammals have some type of fur or hair. Mammals are warm blooded. Click the smiley face to return to the list of vertebrates. Click the star to go to the review page. Most Mollusks have a shell. They have an non segmented body. Mollusks usually need to live in water. They do not have a backbone, so they are called invertebrates. Click the smiley face to return to the list of invertebrates. Segmented worms are divided into small sections. They are called invertebrates because they do not have a backbone. Click the smiley face to return to the list of invertebrates. Another word for arthropod is insect. Some arthropods have a hard shell covering their bodies called an exoskeleton. Most have jointed legs and segmented bodies. They do not have backbones so they are called invertebrates. Click the smiley face to return to the list of invertebrates. Click this star to play the game! Click here for the next question. Click here for the next question. A) do not have a backbone. B) have a backbone. C) live in the ocean. Click here for the next question. A) climb trees. B) do not have a backbone. C) have a backbone. Click here for the next question. Click here for the next question. Click here to return to the question.