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natural resource

something that is found in nature that is useful to humans

aquatic resource

water and all things that live in or around water....

hydrosphere

all of the Earth's water, including surface water, ground water, and water vapor

resevoirs

an artificial lake used to store water

pollution

the contamination of air, water or soil by substances that are harmful to living organisms

conservation

the wise use of natural resources

dissolved oxygen

oxygen gas absorbed by and mixed into water

water pollution

an excess of natural or man-made substances in a body of water

organic

composed of matter that comes from plants or animals either dead or alive

inorganic

composed of matter that doesn't come from plants or animals either dead or alive

decompose

to decay or rot

aquatic organism

any living thing that is a part of an aquatic ecosystem

water quality

the fitness of water source for a given use such as drinking, fishing, or swimming

atmosphere

the gaseous envelope surrounding the Earth; the air

water cycle

the natural process of evaporation and condensation, driven by solar energy and gravity, that distributes the Earth's water as it evaporates from bodies of water

evaporation

to change from a liquid shape into vapor

biosphere

the part of the world in which life can exist; living organisms and their environment

transpiration

the passage of water through a plant to the atmosphere

acid rain

rain or other precipitation containing a high amount of acidity

surface water

precipitation that runs off the land surface

precipitation

a form of water, such as rain, snow or sleet that condenses from the atmosphere and falls to the Earth's surface

runoff

precipitation not absorbed by soil

wetlands

a low-lying area where the soil is saturated with water

geosphere

the solid part of the Earth consisting of the crust and the outer mantle

saturated

soaked with moisture

ground water

water that flows or collects beneath the Earth's surface in saturated soil or aquifers

aquifers

an underground layer of sand, gravel, or rock that holds water in pores or crevices

recharge areas

water that soaks into and refills an aquifer

weather

the movement of water through the water cycle

watershed

all the land from which water drains into a specific body of water

tributary

a stream that flows into a larger stream or other body of water

watershed address

the watershed, sub-watershed, and sub-sub-watershed that includes a particular location

headwaters

the high ground where precipitation first collects and flows downhill in tiny trickles too small to create a permanent channel

channel

the part of the stream where water collects to flow downstream, including the stream-bed, gravel bars and stream banks

perennial stream

a stream that flows for most of or all of the year

intermittent stream

a stream that flows again at different times of the year

point-source pollution

water pollution that comes from a single source or outlet

non-point pollution

water pollution that comes from a combination of many sources rather that a single outlet

sediment

silt, sand, or rocks and other matter carried and deposited by moving water

erosion

the wearing away of land

physiographic

pertaining to physical geography

adaptation

a behavior or trait that increases a specie's chance of survival in a specific environment

gills

a respiratory organ that enables aquatic animals to take oxygen from water and to excrete carbon dioxide

fins

a wing or paddle-like part of a fish used for propelling, steering, or balancing in the water

swim bladder

an air-filled sac near the spinal column in many fishes that helps maintain buoyancy

scales

any of the small, stiff fat plates that form the outer body covering of most fish

stream bed

the bottom of the stream channel

lateral line

an organ running lengthwise down the sides of fish, used for detecting vibrations for pressure changes

predators

an animal that lives by capturing and eating other animals

prey

an animal that is eaten by a predator

plankton

microscopic free floating plant or animal like organisms

population

a group of individuals of the same species occupying a safe area

community

a group of plants and animals living and interacting with one another in a particular place

habitat

the natural environment in which organisms normally live, including the surroundings and other physical conditions needed to sustain it

compete

the act of actively seeking after and using an environmental resource (such as food) in limited supply by two or more plants or animals

niche

the function position, or role of a species within an ecosystem

biotic

of or having to do with life or living organisms; organic

abiotic

nonliving; not derived from living organisms; inorganic

carrying capacity

an ecosystem's resource limit; the maximum number of individuals in a population that the ecosystem can support

producers

an organism that is able to produce its own from non-living materials, and which serves as a food source for other organisms in a food chain

consumers

an organism that feeds on another organism in a food chain

decomposers

an organism such as bacterium or fungus that feeds on and breaks down dead plants or animals, making essential components available to other organisms

food chain

a series of plants and animals linked by their feeding relationships

food web

many interconnected food chains within an ecological community

energy pyramid

a graphical representation designed to show the relationship between energy and trophic levels of a given ecosystem

trophic levels

a group of organisms that occupy the same position in a food chain; each step of an energy pyramid

natural selection

the natural process in which those organisms best adapted to the conditions under which they live survive and poorly adapted forms are eliminated

ecosystem

a community of organisms together with their physical environment and the relationships between them

aquatic ecosystems

an ecosystem organized around a body of water

rivers

a large stream

streams

a body of flowing water

lakes

a large body of standing water

ponds

a body of standing water small enough that sunlight can reach the bottom across the entire diameter

marshes

a wetland dominated by reeds and other grass like plants

wetlands

a low-lying area where the soil is saturated with water

current

the part of a body of water continuously moving in a different direction

oxbow lake

crescent-shaped lake formed when a bend of a stream is cut off from the main channel

buffers

to serve as a protective barrier to reduce or absorb the impact of other influences

biodiversity

the number and variety of living things in an environment

pools

an area of deeper, slower moving water in a stream

riffles

an area of shallow, faster-following water in a stream

invertebrates

an animal without a spinal chord

stream bank

the shoulder-like sides of the stream channel from the water's edge to the higher ground nearby

riparian zone

land next to the stream, starting at the top of the bank, with heavy plant cover on either side

floodplain

the flat land on both sides of a stream, into which the stream's extra water spreads during a flood

first-order stream

a small stream with no tributaries coming into it

shredders

an aquatic invertebrate that feeds by cutting and tearing organic matter

collectors

an aquatic invertebrate that feeds on fine material

grazers

an aquatic invertebrate that eats aquatic plants (algae)

anglers

fisherman, especially one fishing for pleasure

filter feeders

an aquatic animal that feeds by filtering tiny organisms or fine particles of organic matter from water that passes through it

pond succession

the natural process by which sediment and organic material gradually replace the water volume of a pond

detritus

loose material that results from natural breakdown; material in early stages of decay

anaerobic

ocurring or living in the absence of oxygen

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