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

Bio 20 Unit D Topic1

12Side 3
Ecology Study of relationships between organisms and their environment
Abiotic Factors Non-living components of ecosystems Influence organism survival
Biotic Factors Living components of ecosystems Interactions among organisms
Biosphere Area of Earth that supports life Includes land, water, and atmosphere
Levels of Ecological Organization Organism - population - community - ecosystem - biome - biosphere
Organism Carries out life processes
Population Members of the same species, lives in the same area at the same time
Community
Ecosystem Includes climate, geography, and organisms present, multiple together make up a biome
Habitat Place that provides suitable conditions for the presence and survival of a population
Niche Role of an organism in an ecosystem
Producer Makes its own food Uses photo/chemosynthesis
Consumer Heterotroph
Decomposer Breaks down dead matter Recycles nutrients
Terrestrial Ecosystem
Aquatic Ecosystem
Biome Defined by climate and similarities between ecosystems
Taiga Biome Dominated by conifers Cold climate with acidic soil
Grassland Biome Dominated by grasses Limited tree growth Most fertile soil
Deciduous Forest Broadleaf trees Found between taigas and grasslands, or by lakes or rivers
Limiting Factor Restricts population growth and can be biotic or abiotic
Carrying Capacity Maximum population size that an ecosystem can support sustainably
Density-Independent Factor Affects populations regardless of density Examples: fire, drought
Density-Dependent Factor Effect changes with population density Examples: disease, competition
Littoral Zone Shallow lake area from the shore to the end of plant growth at the bottom of the lake High sunlight and plant productivity
Limnetic Zone Open surface water zone Sunlight supports plankton, who in turn support tadpoles, fish, and birds
Profundal Zone Deep lake water zone Mostly Decomposers present Little or no sunlight and low oxygen levels
Chemical Environment Aquatic ecosystem factor Includes oxygen and dissolved substances
Water Pressure Increases with depth, Few organisms tolerate wide ranges
Winter Conditions in Lakes Ice forms on surface, reducing or completely blocking light and thus life in the body of water
Spring/Fall Turnover results from wind and water cooling and rising, then warming and falling, mixing the lake and increasing oxygen dissolved
Summer Stratification Warm water remains on top, limiting oxygen dissolving, and thus one of the reasons that summer is when the least oxygen is dissolved in a lake
Epilimnion Upper warm water layer Higher oxygen exchange Most biological activity
Hypolimnion Lower cold water layer Low oxygen renewal Organisms rely on reserves
Thermocline Middle transition layer Rapid temperature change Limits water mixing
Created by: user-1999865
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