Biology Crossword ~ Taylor

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Across
  1. 3. Animals that give birth to live animals and feed their babies with milk.
  2. 7. Animals with radial symmetry, one body opening and stinging cells.
  3. 8. Single cells that grow into new moss plant.
  4. 9. Animals with backbones.
  5. 12. A subclass of mammals that give birth to immature young that are sucked into a pouch.
  6. 15. A wild plant growing where it is not wanted in competition with cultivated plants.
  7. 16. A living organism living on organic matter.
Down
  1. 1. Phylum of the animal kingdom consisting of round worms.
  2. 2. A living organism of the kind exemplified by trees.
  3. 4. Plants with no vascular tissue that reproduce using spores.
  4. 5. Radial symmetry animals, most of which has spiny skin.
  5. 6. The first level of classification.
  6. 10. Animals with an exoskeleton and jointed limbs.
  7. 11. An organism that has to attach itself to a living thing to survive.
  8. 13. Animals with scales covering their body.
  9. 14. Phylum of the animal kingdom consisting of segmented worms.