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Animal Classificatio
How Are Animals Classified
Question | Answer |
---|---|
Invertebrate | animals that have no backbone |
Sponges | look more like PLANTS than animals |
Sponges eat | tiny organisms that float in the water that passes in and out of their bodies |
A hydra has | snakelike tentacles around its mouth |
Mollusks | animals with soft bodies |
Mollusks have | bodies supported by one or two shells |
Sea star | uses powerful suction cups on its underside to pry open clams |
Earthworm | segmented worm |
Earthworms digest | decaying dead plant sediments in the soil |
Vertebrates | animals with a backbone |
Fish | lay their eggs in water and spend their whole lives in the water |
A salamander is | an amphibian |
Amphibians lay | their eggs in the water |
Amphibians begin their lives | breathing through gills. |
Amphibians develop | lungs and then live on land |
How do reptiles breathe? | with lungs all their lives |
How do birds breathe? | with lungs all their lives |
Where do reptiles lay their eggs? | on land |
Where do birds lay their eggs? | on land |
Where do mammals live? | on land, in the water, and in the air |