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6-13

Oceans

QuestionAnswer
a measure of the amount of salt in the water salinity
the process by which plants use sunlight, water, and carbon dioxide to make food photosynthesis
this begins at a depth of 200m and the temperature of the water drops at each layer thermocline
these currents move only the upper few hundred meters of the sea-water surface currents
a warm surface current that flows from Florida northeastward toward North Carolina Gulf Stream
this current forms when more dense seawater sinks below less dense seawater density current
a current in the ocean that brings deep, cold water to the ocean surface upwelling
a rhythmic movement that carries energy through water wave
the top part of a wave crest
the bottom part of a wave trough
the rise and fall of sea level tide
these tides are created when the Sun, Moon and Earth are aligned Spring tides
these tides are created when the Sun, Moon, and Earth form a right angle Neap tide
tiny marine organisms that float in ocean currents plankton
animals that can actively swim, rather than drift nekton
a community of organisms and the nonliving factors that affect them ecosystem
organisms that can make their own food producers
process that occurs deep in the ocean where sunlight does not penetrate, bacteria make food from dissolved sulfur compounds chemosynthesis
organisms that eat or consume producers consumers
these organisms such as bacteria break down tissue and release nutrients and carbon dioxide back to the ecosystem decomposers
the transfer of energy from producers to consumers and decomposers food chain
Created by: mrsgrom
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