Save
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

Ch23 Biology Study N

QuestionAnswer
El Nino A disruption of the normal air and water circulation patterns in the pacific ocean leading to unusual weather in many parts of the world
Extinction The dying out of a species
Biodiversity The number and variety of organisms in a given area during specific period of time.
Some affects of El Nino are beneficial to humans
What is the greatest threat to the worlds future Exploding human population
How much of the worlds tropical forests have been destroyed about 1/2
The main reason for loss of biodiversity is habitat destruction
El Nino results in a cutoff in the upwelling of nutrients in the ocean
El Nino is Not man made
Extinction of species had been speeded up by Activities of people
Environmental concerns Diversity of species, ground water contamination preservation of nonrenewable resources (such as topsoil)
Insects have... The greatest diversity and richness of all organisms
Destruction of the tropical rain forests.... -Threatens the existence of species -Provides more pastures for farmland -Is done partly because of the need for lumber
Which time is the greatest threat to biodiversity Present time
What are utilitarian uses of biodiversity? -Food -Timber -Recreation
What is the first steps to solving our environmental problems? Educating the public about environmental problems and their costs
What is the circulation of the Earths atmosphere is caused by solar heating
What is the study of environmental science? It uses biological principles to look at the relationships between humans and Earth.
What is the first step to in addressing an environmental problem? Assessment
What is a strategy for conserving biodiversity in developing countries? Ecotourism
Conservation biology Seeks to identify and maintain natural areas
Created by: adlambert
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