Let's Ponder!

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Across
  1. 4. Which plant has flowers but no proper leaves?
  2. 8. What is the name of the protective outer layer of trees?
  3. 9. Which is the only bird able to fly backwards?
  4. 10. What name is given to animals that eat both flesh and plant material?
  5. 11. Study of plants is known as
  6. 12. Silkworm prefers to eat my leaves.
  7. 13. Fastest animal on two legs
  8. 15. Carnivorous plants are also called
Down
  1. 1. What is the name of largest ocean on earth?
  2. 2. Food collects here after we chew and swallow.
  3. 3. I am an unusual plant and is eaten by many people.
  4. 5. Largest land animal
  5. 6. What liquid do plants need for preparing food?
  6. 7. Highest mountain
  7. 11. This is the favourite food of the giant panda.
  8. 14. Largest organ in humans