Part 5: Life in the Intertidal Zone (4 points)

Mark all the TRUE facts about estuaries with an X on the line (½ point each):
_____22. Estuaries are partially enclosed bodies of water where salt water from the ocean mixes with fresh water from rivers and streams (brackish water).
_____23. Estuaries have some of the highest abundance of organisms of all of the ecosystems in the world.
_____24. Estuaries have very deep waters.
_____25. Estuaries provide food, shelter and nursery grounds for animals.
_____26. Estuaries tend to have low amounts of nutrients in their waters.
_____27. Estuaries are called the “cradle of the ocean.”
_____28. Estuaries are part of the intertidal zone.
_____29. Estuaries are stable environments in terms of tides, salinity and temperature.