Across
- 4. a group of animals that usually have a soft body protected by a shell; includes snails and clams
- 6. a category, or kind, of animal or plant
- 8. relating to the regions around the North or South Pole
- 10. an area of land where the main plants growing are grasses
- 13. any of a group of small animals with three body segments, one pair of antennae, and three pairs of legs; often have wings
- 14. a group of animals that includes spiders, scorpions, mites, and ticks
Down
- 1. a group of animals, including humans, that are warm-blooded, breathe air, have hair, and nurse their young
- 2. a group of animals that includes snakes, lizards, and turtles
- 3. a group of animals that includes frogs, toads and salamanders
- 5. an animal that lives in water and breathes through gills
- 7. a group of animals that have feathers, wings, and lay eggs; most can fly
- 9. an animal that eats other animals
- 11. a dry area of land that receives ten inches or less of rain each year
- 12. an area of land covered with trees