Enter your Name:   Enter your E-mail Address:  Define the following terms: 01a. Epipelagic zone 01b. Meroplankton 01c. Neuston 01d. Vertical migration 01e. Dissolved organic matter (DOM) 01f. Microbial loop 01g. Upwelling 02. Does most human activity accour in the neritic or oceanic zone of the epipelagic? 03. Distinguish between holoplankton and meroplankton. 04. Why are picoplankton important for the cycling of nutrients in the epipelagic? 05. A marine biologist does a plankton tow in the epipelagic and collects many species of zooplankton. Which organisms will most likely be the largest group collected? 06. Larvaceans are important predators in the epipelagic as well as providing an important food supply for other species. Explain their special role in the food web. 07. Most nektonic species are carnivorous predators. Give an example of a large nektonic organism that is not a carnivorous predator. 08. An epipelagic organism has many feathery projections on its body. Is it most likely planktonic or nektonic? Why? 09. Explain the benefit of swim bladders and dark, myoglobin-rich interior muscles in nektonic species such as tuna. 10. The violet shell (Janthina) is a predator that suspends itself upside down at the surface of the water using air-filled bubbles. upon which group of organisms (plankton, nekton, or neuston) does this creature feed? 11. Why are most epipelagic nekton silver and blue in color? 12. Which epipelagic creatures undergo vertical migration? 13. The microbial loop is sometimes referred to as a food web within a food web. Explain why this might be so. 14. The equator has a relatively high amount of primary productivity, yet just north and south of it, productivity is greatly diminished. Explain why it is so high at the equator. 15. How is the weather in India connected to the weather in Peru and Chile?