Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Quiz: Energy Flow

TermDefinition
Ecosystem -In any ecosystem, there are a network of relationships & interactions taking place b/w organisms & the environment.
Energy -Flows through an ecosystem. -The sun is the source of all energy.
Food Webs & Food Chains -Describes the flow of energy.
Abiotic Elements -Important abiotic elements are often recycled in an ecosystem.
Metabolism -(Photosynthesis, digestion, respiration, etc.) requires energy.
Organisms and Energy -Organisms must obtain energy in order to do metabolism and stay alive.
Producers, consumers and decomposers -Terms which describe how an organism obtains its food. -Food chains describe these relationships.
Energy Loss -Energy is NOT recycled but is LOST as organisms interact with one another.
Producers -Make their own energy, they turn energy from the sun into glucose. -Glucose is used for plant's metabolism. -This is called autotrophs
Consumers -Obtain their energy, they get their energy from other organisms.
Herbivores - Primary Consumers -Consume or eat producers only.
Carnivores - Secondary Consumers -Consume or eat other animals only.
Omnivores - Tertiary Consumers -Consume or eat producers and/or other consumers -Eat pretty much everything.
Food Chain -Relationships b/w organisms is called a food chain. -Feeding levels in food chain are called Trophic Levels. -Energy is lost as we move up the food chain. -10% Rule -- For metabolism
How much energy is lost? -10% -As you move up the food chain you only take 10% with you.
Describing Consumers -Consumers often described by trophic levels. -Higher level consumers have less energy available to them.
10% Rule -Energy is "spent" at each level in food chain...metabolism. -Most energy from food goes to metabolism. --Moving, digesting, growing, reproducing, -Only about 10% goes to tissue that can be eaten.
Food Web -Food webs describe many food chains. -Organisms are interconnected. -Energy is lost as it moves up the trophic levels.
Decomposers - Detritivores -Break down organisms & wastes (recycling)
Keystone Species -An important organism "linked" to many other organisms in an ecosystem. -If they are missing whole ecosystem is negatively affected.
Productivity of Ecosystems -Some ecosystems have abiotic factors more favorable for living things. -Productivity starts with Plants (photosynthesis).
Biome Productivity -Primary productivity measures how much energy producers can acquire from sun. -1% of Sun's energy is used for photosynthesis.
Measuring Productivity -Biomass pyramid -- measures how much living tissue is present. -Pyramid of Numbers -- measures of individual organisms present in an ecosystem.
Bioaccumulation -The accumulation of substances, such as pesticides, or other chemicals in an organism. -Concentrations get higher at each trophic level.
Created by: Sturgeon42659