Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

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.
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

Study Guide U-Ecolog

What affects the amount of precipitation in an area? air circulation, evaporation, and mountain ranges
Aquatic ecosystems characteristics -Have vertical stratification of chemical variable (different waters = different chemicals) -Thermal stratification -Responsible for rainfall and global temperature regulation -Help with O2 production and CO2 consumption (photosyn. under water)
6 Social Behaviors of Animals 1. Cooperative- work as a team 2. Agnostic- strength and aggression 3. Dominance 4. Territoriality- defending an area 5. Courtship- "mating rituals" 6. Signals- cause change in another organisms behavior
3 Survivorship Curves 1. Type 1: favorable and top of the chain (many young, numerous middle, few old) 2. Type 2: relatively favorable, but org. may be a food source (constant decline) 3. Type 3: harsh (many young, few middle, very few old)
Why is competition a - - relationship? One has food and the winner spends a lot of energy (comp. exclusion principle) (3 choices)
Other organism relationships 1. Predation ( + , -) Ex: horse gazing 2. Mutualism ( + , +) Ex: Bees/ flowers 3. Commensalism ( - , 0) Ex: Fish/ feet
The difference between primary and secondary succession -Primary- starting from scratch (Hawaii from barren volcanic rock to tropical island) -Secondary- starting at grass level
The flow of energy between trophic levels -Primary producers: can perform photosynthesis -Consumers: heterotrophs -Decomposers: feed on dead organic material
Why do flowers grow towards light and what is it called? Phototropism: The auxin travels down the "dark" side and stimulates those cells to elongate at a greater rate than the "light" side. Unequal growth causes the plant to bend, by growth toward the light for maximum exposure in the leaves.
Boom and bust cycle -Shows the lag time for other species to adjust to change in species population # -the 2 population lines chase each other bc direct relationship -natural selection is promoted bc strongest will survive -predator/prey relationships drive co-evolution
Created by: efaith09
Popular Biology sets




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