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.

Remove Ads
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

Bella Nat 5

Unit 3 part 2 Energy in Ecosystems

QuestionAnswer
What does an arrow show in a food web or chain? The direction of ENERGY FLOW.
What is a producer. A GREEN plant that can make its own food by photosynthesis.
What is a consumer? An organism that gets its energy by eating another organism.
State two ways energy is lost from a food chain. Any 2 from
What is a herbivore? An organism that only eats plants
What is a species? Organisms that can reproduce and produce fertile off-spring
What is a Carnivore? An organism that only eats animals.
What is meant by a pyramid of biomass? A diagram that represent the mass of organisms at each successive level of a food chain.
What happens to the Biomass in a food chain as you go along the food chain? It gets smaller
What happens to the Energy in a food chain as you go along the food chain? It gets smaller
Which ecological Pyramid ALWAYS takes the shape of a pyramid? Energy
What is meant by a pyramid of Numbers? A diagram that represent the Number of organisms at each successive level of a food chain.
What is meant by a pyramid of Energy? A diagram that represent the Energy of organisms at each successive level of a food chain.
What percentage of energy is passed on at each stage in a food chain? 10%
What happens to the energy that is passed on in a food chain? It is turned into body tissue
How much energy is LOST at each stage in a food chain? 90%
Give an example of a food chain where the Numbers do NOT decrease in size Tree
Why do plants need nitrates? To make protein
Which micro-organisms are involved in decomposition? Bacteria & Fungi
What do leguminous plants have on their roots? Nodules
What is Inter-specific Competition? Competition between Different Species
What type of competition is the most intense? Intra-specific
What is Intra-specific Competition? Competition WITHIN the species
What do Denitrifying Bacteria do? Break down Nitrate to Nitrogen gas
What do Nitrogen-fixing bacteria do? Turn Nitrogen gas into Nitrates
What do Nitrifying bacteria do? Turn Ammonia into Nitrite then Nitrate
What do root nodule bacteria do? (They are Nitrogen fixing bacteria) Convert Nitrogen gas to Nitrate
What bacteria are found in root nodules? Nitrogen Fixing Bacteria
Created by: nscobie