Exam1Concepts - Concepts Can you explain the concept of...

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Concepts Can you explain the concept of heat of vaporization and latent heat of fusion? Heat of vaporization is the amount of heat required to evaporate a liquid. Water has a high heat of vaporization and evaporates slowly, and has a high boiling point (100°C). This is why most water is in the liquid phase on earth. Latent heat of fusion is the amount of heat gained per unit mass when a substance changes from a solid to a liquid OR lost when it changes from a liquid to a solid. Water has the highest value of most common compounds. Melting ice takes up large quantities of heat. Both of these properties means it takes a lot of heat to change the temperature of a given quantity of water. (Chapter 1, page 2) What are the crucial chemicals and other essential elements needed by marine organisms? Elements essential to life processes include Iron, Manganese, Cobalt, and Copper (Chapter 1, Page 3). Crucial chemicals include ??? Phosphate and nitrate are required by plants for photosynthesis. Silicon dioxide is required by diatoms and radiolarians to construct their skeletons. Can you explain why oxygen is not distributed uniformly with depth in the ocean? Oxygen is not distributed uniformly with depth in the ocean because of photosynthetic activity by plants and diffusion from the atmosphere lead to supersaturation and no more oxygen can be absorbed (Chapter 1, Page 4). What are the four major world ocean divisions? Which one is the largest? Smallest? 1. Pacific (Largest) 2. Atlantic 3. Indian 4. Artic (Smallest) What is the difference between a Poikilotherm and a Homeotherm? Poikilothermic, or ectothermic, means that body temperature varies with surrounding water mass (the majority of marine organisms are poikilotherms). Homeothermic, or endothermic, have the ability to regulate their own internal temperatures regardless of the temperature of the water mass (most marine birds and mammals, and some fishes are homeotherms). (Chapter 1, Page 7) When measuring waves what is the difference between wavelength and period?
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Wavelength is the horizontal distance between the tops or crests of successive waves. The period is the time required for two successive wave crests to pass a fixed point. (Chapter 1, Page 8) Describe the four components of the trophic pyramid -------------------------------------------------------------------------------- ?????-------------------- -------- What is the difference between a fundamental and a realized niche? A fundamental niche is the potential distribution of a species. A realized niche is the
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Exam1Concepts - Concepts Can you explain the concept of...

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