Question | Answer |
contain standing water | lentic |
water is constantly moving | lotic |
very low in nutrients, populations of plankton and algae are very low | oligotrophic |
have greater concentrations of nutrients, removes a growth limiting factor for algae and plankton | eutrophic |
narrow channels of water, moves rapidly across rocks and down waterfalls | stream |
generally cold, rich in oxygen, and low in nutrients | source zone |
streams widen, become deeper and are warmed by the sun | transition zone |
low-lying areas experience wide, slow-moving rivers that occasionally flood and deposit material | flood plain zone |
fresh water mixes with saltwater, forming brackish water | mouth |
do not have trees | marsh |
do have trees | swamp |
wetlands characterized by plants that produce acidic secretion, slows down action of decomposers | bog |
extends from high-tide mark on land to edge of continental shelf | coastal zone |
partially enclosed bodies of water where seawater mixes with freshwater | estuary |
areas of land that are fully saturated with water at least part of the year | coastal wetlands |
gravitational pull of the moon and sun causes tides to rise and fall - submerged during high tide and exposed during low tide | intertidal zone |
network of leftover skeletons creating crevices and ledges.. | coral reef |
sufficient sunlight for photosynthesis 200m in depth | photic zone |
little to no sunlight 200m-1500m in depth; also known as the bathyal zone | aphotic zone |
no sunlight (ocean floor) 1500m-10,000m in depth; also known as the abyssal zone | benthic zone |