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

Intro to Biology

TermDefinition
Biologist Anyone who uses the scientific method to study living things
DNA Molecule that stores all the information an organism needs to live and is passed onto future generations
Homestasis Relatively constant internal physical and chemical conditions
Stimulus A signal to which an organism responds (change in homeostasis)
Irritability The ability to respond to homeostasis
Sexual Genetic material comes from 2
Asexual Genetic material comes from 1
Metaboism Total sum of all chemical reactions that take place in an organism
Anabolism Putting together complex substances from simpler ones
Catabolism Breakdown of complex substances into simpler ones, usually with a release of energy
Structure What is it made of
Function Why does it help it to do what it does (purpose)
Tomas Malthus Humans are overcrowding the planet, only forces keeping us in check are war, famine, disease, if the population keeps growing it is unsustainable
Breeder in agriculture Selective breeding (artificial selection)
Struggle for existence Organisms must compete to obtain food, living space, and needs
Adaptions heritable characteristics that increase an organisms ability to survive and reproduce in its enviornment
Survival of the fittest differences in adaptations affect an individuals fitness
Fitness Describes how well an organism can survive and reproduce in its environment
Survival Means reproducing and passing adaptations to the next generation
Biogeography study of where organisms live now and where ancestors lived in the past
Fossil record explains why organisms that lived long ago are different from the ones we see today
Homologous structures structures shared by related species that have been shared by a common ancestor
Vestigial structures inheited from ancestors but have lost most or all of their original function due to different selection pressures
Embryology similar patterns of embryological development
Genetics and Molecular Biology common code of DNA and RNA , common genes and close DNA sequences
Characteristics of life Is based on a universal code (DNA) , grows and develops , responds to their environment , can reproduce , obtain and use energy , made up of cells , evolve
Created by: 21stewart.sam
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