Exit this survey >> BWET 08/09 Post Test 1. Default Section Question Title * 1. What is an estuary? a bay near the ocean a river that drains from a mountain a body of water where fresh and salt water mix the Outer Banks Question Title * 2. Which of the following is NOT a flatfish? flounder hogchoker tonguefish silverside Question Title * 3. A MATURE FEMALE blue crab is also called what? Jimmy Sook Sally Sarah Question Title * 4. Oysters do NOT benefit water quality in the Chesapeake Bay. True False Question Title * 5. Which of these organisms does NOT live within an oyster reef? flounder mud crabs barnacles sea squirts Question Title * 6. Which measurement tells you how much salt is in the water? turbidity temperature salinity pH Question Title * 7. Summer Flounder go through a metamorphosis from larvae to adults. This includes (choose one) switching from right to left-sided flatfish one eye migrating so that both are on the same side of their body changing from male to female moving from land to water Question Title * 8. What is the BEST way to tell if a blue crab is male or female? color of shell size of claws ask it shape of underside/apron Question Title * 9. The big estuary closest to your school/home is Chesapeake Bay Virginia Bay Delaware Bay Mississippi River Question Title * 10. Oysters attach to one spot and stay there for their entire lives. This characteristic is called mobile boring sessile lazy Question Title * 11. What is a sponge crab? a crab carved out of a sponge the first stage of the blue crab life cycle a tiny crab that lives inside of an oyster a pregnant female blue crab Question Title * 12. The correct order of blue crab life history is: zoea, megalops, first crab, juvenile megalops, first crab, zoea, juvenile first crab, megalops, juvenile, zoea zoea, juvenile, megalops, first crab Question Title * 13. Which of the following is NOT a bivalve? scallop clam oyster blue crab Question Title * 14. An adult blue crab will eat a juvenile blue crab. True False Question Title * 15. Baby oysters that first attach to a hard surface are called what? larvae spit juvenile spat Question Title * 16. How do oysters eat? crush prey between their shells filter feed plankton from the water dig around in the sand for worms hide from prey and ambush them Question Title * 17. Which of the following is NOT an invertebrate? blue crab grass shrimp flounder oyster Question Title * 18. There are just as many oysters in the Chesapeake Bay now as their were 100 years ago. True False Question Title * 19. What two rivers come together to form the York River (this happens at West Point)? Potomac and James Pamunkey and Mattaponi Pamunkey and Potomac Poropotank and Pamunkey Question Title * 20. The base (bottom) of the food chain in the Chesapeake Bay is which kind of plankton? phyto (plant) plankton zoo (animal) plankton Question Title * 21. Choose the option that is a correct food chain. plankton, blue crab, silverside plankton, silverside, big flounder big flounder, plankton, silverside blue crab, silverside, plankton Question Title * 22. A heavy rain in Gloucester County would do what to the salinity in the York River? make the salinity go up make the salinity go down do nothing to the salinity Question Title * 23. A tributary is a place where you get books where the bay meets the ocean a small plant a river that drains into a larger body of water Done >>