Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.

Remove ads
Don't know
remaining cards
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

Ch 1 Vocab


biosphere all living things and all the places they are found on earth
biodiversity the variety of life
species a particular type of living things that can reproduce by interbreeding among themselves
biology the scientific study of all forms of life, or all types of organisms
organism any individual living thing
cell the basic unit of life
metabolism all of the chemical processes that build up or break down materials
DNA the genetic material in all organisms
system an organized group of related parts that interact to form a whole
ecosystem a physical environment with different species that interact with one another and with nonliving things
homeostasis the maintenance of constant internal conditions in an organism
evolution the change in living things over time
adaptation an inherited trait that gives an advantage to individual organisms and is passed onto future generations
observation using your senses and other tools to study the world
data recorded observations
hypothesis a proposed answer for a scientific question
experiments testing the hypothesis
independent variable a condition that is manipulated
dependent variable the experimental data
constants the conditions that do not change in an experiment
theory a proposed explanation for a wide range of observations and experimental results that is supported by a wide range of evidence
microscope provides an enlarged image of an object
gene a segment of DNA that stores genetic information
molecular genetics the study and manipulation of DNA on a molecular level
genomics the study and comparison of genomes both within and across species
biotechnology the use and application of living things and biological processes
transgenic organisms that have genes from more than one species, or have altered copies of their own genes