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Hydrosphere – Oceans Study Guides Be sure you know the following vocab words and how they relate to the unit: Upwelling Bioindicator Coral Reef Hydrothermal vent Dissolved oxygen Seafloor Spreading Chemosynthesis Sonar Abyssal plain Plankton Scuba Bioluminescence Nekton Satellite Submersibles Benthos Estuary intertidal zone Submarine canyon Trench Mariana Trench Adaptation Evolution Natural Selection The test will consist of mostly multiple choice, matching, and true and false questions. Here is a sample of some questions that could be on the test: 1. Which of these organisms is a producer in a marine ecosystem? A. gull B. worm C. Algae D. fish 2. In which oceanic zone do clams and crabs survive by burrowing in the sand? A. Open Ocean zone B. intertidal zone C. oceanic D. Deep zone 3. How can sonar best be used to monitor the hydrosphere? A. by creating an underwater sound analysis of marine life B. by helping map and record distinct features of ocean basins C. by recording changes in ocean water temperatures over time D. by updating databases on water temperature and salinity 4. Which contributes most in supporting life on the deep ocean floor? A. cold water temperatures B. extreme water pressure C. hydrothermal vents D. lack of predators 5. Which causes cold ocean water to rise during an upwelling event? A. motion of organisms B. deep water currents C. mass of nutrients D. surface winds 5. In which part of the ocean do the greatest number of organisms live? A. in the deep zone to escape predators B. near the shore to burrow in the sand C. close to the surface to be near the largest food source D. in open ocean to regulate their bodies in cooler temps True or false (this is a sample of the types of true or false questions that could be on the test) 1. Genetic mutations are the cause of adaptations. ___________ 2. Hydrothermal vents are very harsh environments that do not support life on the ocean floor. _____________ 3. The neritic zone is so deep that water cannot penetrate the water down to the ocean floor. ________ 4. An estuary is where ocean water meets fresh water. ________________ 5. Sonar is used to orbit the earth and get images of the ocean floor. __________ Matching (this is a sample of what a matching section might look like) 1. Plankton A. organisms that live on the ocean floor 2. chemosynthesis B. the process whereby organisms better adapted to their environment tend to survive and produce more offspring 3. Benthos C. the small and microscopic organisms drifting or floating in the sea or fresh water 4. Natural Selection D. the process where bacteria provide energy and nutrients in the deep parts of the ocean near vents
