Lucas Flashcards
To show you how many organisms are at each level in a food chain, ecologists use a model called a ________ ___ _______.
pyramid of numbers
_____ ______ is the transfer of energy that begins with the Sun and passes from one organism to the next in a food chain.
Energy flow
__________ is a green chemical that traps the energy of the sun
Chlorophyll
Producers use the trapped energy to make food, this process is called _________
photosynthesis
The carnivore at the end of the food chain is known as the ___ ________
top consumer
A consumer obtains the energy it needs by breaking down high-energy foods, such as sugar and starch in a prosses called ______ ________
cellular respiration
______ _______ is the continues movement of water through the environment
Water cycle
______ ______ is a model that shows how food energy passes from organism to organism
food chain
______ ______ is a network of interconnected food chains in an ecosystem
Food web
_______ ______ is a model showing how carbon is used and re-used throughout ecosystems
Carbon cycle
__________ is the process when a liquid changes into gas or vapor
evaporation
___________ is the process when water that is taken in through a plants roots than evaporates from the leaves, stem and flowers
transpiration
_____________ is the process when gas or vapor changes into liquid
Condensation
___________ is the process when tiny droplets inside the clouds combine with big droplets which fall on the earth as rain, sleet, snow or hail
precipitation
_______ ______ is the water contained on the earths crust
Ground water
_____ -____ is water that runs along the surface of the ground into lakes or rivers
Run-off
_______ is a collective term for the different types of harmful materials
Pollution
_________ is a material that causes pollution
pollutants
_____________ is the accumulation of pollutants in other organisms through the levels of the food chain so that organisms higher in a food chain has higher levels of pollutants
Bioaccumulation
_________ ________ is any living or non-living factor that controls the number of individuals in a population
Limiting Factor
________ ________ is the maximum number of individuals that an environment can support over a long period of time
carrying capacity
______ ________ is the steady increase in the temperature of the earths atmosphere
Global warming
_________ _________ is the gradual change in the make-up of a biological community over time
Ecological succession
