Busy. Please wait.

Forgot Password?

Don't have an account?  Sign up 

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.

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

Already a StudyStack user? Log In

Reset Password
Enter the email address associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know (0)
Know (0)
remaining cards (0)
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:
restart all cards

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 wrk

what is competition and who competes? organisms compete with each other for space/light, food and water
what are adaptations? adaptations are special features or behaviour which make an organism particularly well-suited to its enviroment.
what is variation? differences between indivuals of the same species are called variation.
what happends during sexual reproduction? during sexual reproduction a sperm from a male fuses with an egg from a female
what does asexual reproduction mean? asexual reproduction means no variation at all, unless it is due to enviromental causes.
why is genetic modification used? genetic modifcation is used to improve different aspects of organisms.
what is genetic engineering? genetic engineering is when things such as insulin or a chromosone are inserted into organisms to make them work properly or better.
which 4 things are the reasons for extinction? the 4 reasons for extinction are competition, enviroment changes, new predators and new diseases.
what is natural selection in basic terms? natural selection in basic terms is the formation of new species.
what use are fossils? fossils give evidence on how organisms have evolved.
Created by: 05ashraf.ahmed