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.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.


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

Science Ch.5 test

Science Chapter 5 Test

QuestionAnswer
What is the most signifaicant reason that species are becoming endangered? Loss of habitat. A habitat provides all the needs for the organism, and if the habitat is destroyed, the animal could die, and become endangered.
One of the most important functions of nitrogen in an ecosystem is its ability to make _______, which make hop a large part of every cell. protein
What is first step in the nitrogen cycle? Lightning fixes nitrogen in the air into nitrogen compounds
What is the third step in the nitrogen cycle? Plants absorb nitrogen compounds from the soil and make amino acids
What is the fourth step in the nitrogen cycle? Animals eat the plants
What is the last step in the nitrogen cycle? Decomposers break down nitrogen-containing compounds in dead plants and animals, and release nitrogen gas into the air.
what is the first step in the water cycle? Evaporation from oceans, lakes, and streams
What is the second step in the water cycle? Condensation
What is the third step in the water cycle? Precipitation
What is the fourth step in the water cycle? surface runoff
what is the last step in the water cycle? Evaporation from plants
What is the second step in the nitrogen cycle? Rain carries nitrogen compounds from the air to the ground
What is the first step in the carbon cycle? Carbon enters the atmosphere as carbon dioxide from respiration (breathing) and combustion (burning)
What is the second step in the carbon cycle Carbon dioxide is absorbed by producers to make carbohydrets in photosynthesis. These producers then put off oxygen.
What is the third step in the carbon cycle? Animals feed on the plants.Thus passing the carbon compounds along the food chain. Most of the carbon these animals consume however is exhaled as carbon dioxide. This is through the process of respiration. The animals and plants then eventullay die.
What is the fourth step in the carbon cycle? The dead organisms are then eaten by decomposers in the ground.The carbon that was in the animals bodies then returns to the air as carbon dioxide. The decomposed plants and animals may then be available as fossil fuel in the future for combustion.
Created by: MeghanKea16