midtermEEB 109 Summer07 print - EEB 109 Introduction to...

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EEB 109 Introduction to Marine Science Summer 2007 Instructor: Vicente Cassano MIDTERM I EXAM GRADE: Name:_______________________________________________________ Questions 1 through 3 (24 pts.) Question 1. Complete the sentences: Name the four basic sciences that combined give the study of Marine Science an interdisciplinary nature. Question 2. a) Draw a simple diagram in the space below and label the following geological features of the ocean floor: trench, continental shelf, abyssal plain, submarine ridge and slope. b) What percentage of the Earth’s surface is covered by oceanic waters? c) Name the geological feature of the ocean floor that covers 60% of the surface of our planet. Question 3. Name: a major inorganic constituent of seawater: _______________, a minor inorganic constituent of seawater: _______________, a trace inorganic constituent of seawater: _______________. In which of the three categories of constituents above would you expect to find ions that do not exhibit the same ratios in seawater samples obtained from different locations? Why? 1
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Define meroplankton. Give common and scientific name of an organism that fits the definition above. Common name: Scientific name: . Question 4. (5 pts.) The marine teleost fish Notothenia corriceps is the only known vertebrate to lack hemoglobin (in the blood) and myoglobin (in the cardiac ventricular muscle). Explain how a characteristic of the ocean water in which these fishes live allows them to survive despite lacking two oxygen binding proteins critical for most vertebrates? Select among items a, b, c, d, and e below the appropriate answer to questions 5 to 8. (4 items x 2 = 8 pts.) Question 5. Percent by weight of the solid matter dissolved in the ocean represented by the ten most abundant inorganic constituent ions of seawater. Question 6. Percent by weight of water in seawater. Question 7. Percent by weight of dissolved solid and gases in seawater. 2
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Question 8. The single most abundant inorganic constituent ion in seawater is ____________________. It represents __________ percent by weight of the solid matter dissolved in seawater.
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