apologia marine bio mod 13 | Baamboozle - Baamboozle

Larvaceans are important predators in the epipelagic, as well as providing an important food source for other organisms. What do they eat and what do they provide?

a. they eat the pico and nano plankton b. they produce and shed mucous coverings many times as they grow.

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What is a form of camouflage used in the epipelagic and why?

Counter shading, because it is open sea, with nothing but the sky and the deep ocean to blend in with

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How does the sea slug stay at the surface of the water?

By swallowing a bubble of air.

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Why are picoplankton important for the cycling of nutrients in the epipelagic?

They eat the DOM and in turn are eaten, bringing the organic material in the DOM back into the food web.

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How is the weather in India connected to the weather in Peru and Chile?

They are part of a phenomenon called El Nino Southern Oscillation (ENSO)-a sea saw effect of barometric pressure, resulting in extreme weather in both areas

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What is the most abundant group of zooplankton in the epipelagic?

copepods - a group of small crustaceans found in nearly every freshwater and saltwater habitat.

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Why did scientists in the past believe that diatoms and dinoflagellates were the main source of primary production in the open ocean?

because standard plankton nets did not catch any of the microplankton.

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What is the difference between the prefixes 'mero" and "holo"?

"mero" means part and "Holo" mean whole

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What is DOM

Dissolved organic matter, Organic material dissolved in ocean water (sugars, lipids,, cellulose)which picoplankton feed on

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What is so beneficial about cyanobacteria?

They are picoplankton that are nitrogen fixers.

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Describe the differences in appearance between a nektonic organism and a planktonic organism.

A planktonic organism will have something to hinder its descent in the water column, a nektonic organism will be streamlined to prevent drag.

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Why can cyanobacteria survive in nutrient poor water?

They are nitrogen fixers, gaining nitrogen from N2 gas dissolved in the water.

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