Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


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.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
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

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



Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards