Science
Terms
undefined, object
copy deck
- seasons
- regular divisions of the year
- succession
- gradual changes in the populations of organisms in an ecosystem
- ground water
- water that is stored in the ground
- photosynthesis
- plants use water,carbon dioxide from the air and energy from the sun to form sugar molecules from the sun
- transpiration
- tiny openings allow water vapor to move out of the plant
- evaporation
- the process of liquid water changing into a vapor or gas
- condensation
- the process of water vapor changing to a liquid
- invasive species
- species that are not native to the area and can cause harm
- excessive fishing
- is another man-made stress
- habitat destruction
- the largest man-made stress
- precipitation
- droplets that collect in clouds and fall to the earth
- native species
- plant and animal species that origanally live in an ecosystem
- nitrogen cycle
- is also important to life
- flood
- occurs when an ecosystem recieves more water than it can use or store
- excessive hunting
- is another man-made stress
- drought
- occurs when an ecosystem recieves less rainfall than it needs
- endangered
- when apopulation is so small that the species may become extinct
- cycle
- regular pattern of change
- threatened
- when a population could become endangered in the near future
- extinct
- when the last known member of a species dies
- stress
- any physical hazard to life caused by having too much or too little of things needed for life
- respiration
- process in which organisms use sugar molecules and oxygen to produce energy
- pollution
- anything that makes the water, air, or land dirty