Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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. Your email address is only used to allow you to reset your password. See 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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

Chapter 2

BC Science 10, Mr. Fehr A Block

TermDefinition
Energy Flow The flow of energy from an ecosystem to an organism and from one organism to another.
Producers organisms that produce food in the form of carbohydrates during photosynthesis.
Decomposition The breaking down of organic wastes and dead organisms.
Biodegration The action of living organisms such as bacteria to break down dead organic matter.
Decomposers Change wastes and dead organisms into usable nutrients.
Food Chains Models that show the flow of energy from plant to animal and from animal to animal.
Trophic Level A step in a food chain.
Primary Producers organisms in the first trophic level (plants and phytoplankton).
Primary Consumers Organisms in the second trophic level (grasshoppers and zooplankton)
Secondary Consumers Organisms such as frogs and crabs. They are in the 3rd trophic level and get their energy by eating primary consumers.
Tertiary Consumers Organisms such as hawks and sea otters. They are in the 4th tropic level and get energy by consuming secondary consumers.
Detrivores Consumers that obtain their energy and nutrients by eating bodies of small dead animals.
Herbivores Primary consumers that eat plants.
Carnivores secondary consumers that eat primary consumers.
Omnivores Consumers that eat both plants and animals.
Food Webs Models of the feeding relationships within an ecosystem.
Food Pyrdamid A model that shows the loss of energy from one trophic level to another.
Ecological Pyramids Has 3 types: biomass, numbers and energy.
Nutrients Chemicals that are required for plant and animal growth and other life processes.
Stores Nutrients that are accumulated for for short or long periods of time in Earth's atmosphere, oceans, and land masses..
Nutrient Cycles Continuous flows of nutrients in and out of stores.
Carbon Cycle The nutrient cycle in which carbon is moved through the biosphere.
Nitrogen Cycle The nutrient cycle in which nitrogen is moved through the biosphere.
Phosphorus Cycle The nutrient cycle in which phosphorus is moved through the biosphere
Sedimentation The process that contributes to the formation of sedimentary rock.
Carbonate A combination of carbon and oxygen
Photosynthesis A chemical reaction that converts solar energy to chemical energy.
Cellular Respiration The process in which both plants and animals release carbon dioxide back into the atmosphere by converting carbohydrates and oxygen into carbon dioxide and water.
Nitrogen Fixation The process in which nitrogen gas is converted into compounds that contain nitrate or ammonium.
Nitrogen-fixing bacteria Bacteria that convert nitrogen gas into compounds that contain nitrate or ammonium.
Denitryfying Bacteria Bacteria that convert nitrate back into nitrogen gas.
Denitrification When Nitrogen is returned to the atmosphere.
Leaching Removal by water of substances that have dissolved in moist soil.
Eutrophication the process by which excess nutrients result in increased plant production and decay.
Pesticides Chemicals used to eliminate pests.
Bioaccumulation Gradual build-up of chemicals living in organisms.
Keystone Species species that can greatly affect population numbers and the health of an ecosystem.
Biomagnification the process in which chemicals not only accumulate but become more concentrated at each trophic level.
PCBs Synthetic chemicals that were used from the 1930s - 1970s in industrial products. They affected orcas.
Half-life the time it takes for the amount of a substance to decrease by half
Persistent Organic Pollutants carbon containing com[pounds that remain in water and soil for many years.
DDT Insecticide. Introduced in 1941 to control disease-carrying mosquitoes.
Parts Per Million The unit of measurement for chemical accumulation.
Heavy Metals Metallic elements with a high density that are toxic to organisms at low concentrations.
Bioremediation The use of living organisms (usually micro-organisms or plants) to do the clean-up naturally.
Created by: ssoetarj
Popular Biology sets

 

 



Voices

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:
Retries:
restart all cards