oysters clue

12345678910111213141516171819202122232425
Across
  1. 4. An oyster is a bivalve mollusk whose shell is made up of two halves connected by a hinge. The shell can open to allow water in and close to protect the oyster’s soft body. Here’s what’s inside an oyster’s shell.
  2. 6. Feeders pump water through their bodies, filtering out algae and bacteria to eat. In the process, they remove pollution from the water
  3. 8. A threat to the environment
  4. 10. Harm,destroyed
  5. 11. Hard outer covering made of the mineral calcium carbonate that protects the oyster
  6. 16. Holds two halves of the oyster’s shell together
  7. 17. Below the water
  8. 21. I tool that measure things
  9. 22. Digests algae caught in the gills
  10. 24. Species Vital to their ecosystem
  11. 25. Skin like covering that protects the oysters organs
Down
  1. 1. Palp sorts and transfers food from the gills to the digestive tract
  2. 2. To lift up to or to elevate
  3. 3. blocking waves that can wash away sand and soil. Oysters also help keep harbors clean
  4. 5. Surges which occur when rising water is pushed onto land, causing flooding. The reefs help reduce erosion by blocking waves that can wash away sand and soil
  5. 7. Oyster reefs provide homes for other creatures, protect coastlines, and keep waters clean.
  6. 9. Harvesting until the animal is not there anymore
  7. 12. The tiny, immature oyster larvae have shells smaller than the period at the end of this sentence.
  8. 13. Oysters are a keystone species. That means they’re vital to their ecosystem—a community of organisms interacting with their nonliving environment. Oyster reefs provide homes for other creatures, protect coastlines, and keep waters clean.
  9. 14. Muscle Opens and closes the shell
  10. 15. Thin and complex
  11. 18. Filter oxygen,algae,and particles from the water
  12. 19. Provide homes for other creatures, protects coastline and keeps water clean
  13. 20. Pumps the oysters blood
  14. 23. Loss Oyster population are going down