tessa Flashcards
photosynthesis
the process by which producers use trapped energy from the sun to make food
chlorophyll
a green pigment found in producers that traps the energy of the sun during photosynthesis
cellular respiration
the process by which an organism obtains energy by breaking down high energy foods such as sugarand starch
food chain
a model that shows you how food energy passes from organism to organism
food web
a network of interconnected food chains in an ecosystem
pyramids of numbers
a model used by ecologists to show how many organisms there are at each level in a food
energy flow
the transfer of energy that begins with sun and passes from one organism to another
top consumer
the carnivore at the end of a food chain
water cycle
the continuous movement of water through the environment the water cycle consists of evaporation, transpiration, condensation, and precipitation
evaporation
the process in which a liquid changes into a gas or vapor
transpiration
the process in which water that is taken in through a plants roots evaporates from the plants leaves stem and flowers
condensation
the process in which a gas or vapor changes in state to become a liquid
precipitation
the process in which the tiny droplets inside clouds combined to form large drops which fall to earth as rain sleet snow or hail
ground water
the water combined in earths crust
run off
water that runs along the surface of the ground into lakes and rivers