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

evolution

words about science

TermDefinition
Fossil A trace of an ancient organism that has been preserved in rock.
competition the struggle between organisms to survive in a habitat with limited resources
evolution change over time
homologous Structures in different species that are similar because of common ancestry.
specification Formation of new species
extinction the diminishing of a conditioned response
ancestor A relative who lived in the past
embryo developing stage of a multicellular organism
over reproduction Occurs when too many offspring are produced than can possibly survive
variation Any difference between individuals of the same species.
natrual selection organisms most adapted to enviroment are more likely to survive.
contration a period of economic decline marked by falling real GDP
relaxation diastole
autonomic parts of the cell membrane that receive the neurotransmitter and initiate or prevent a new electric signal
receptors controls self-regulated action of internal organs and glands
cellular respiration process that releases energy from food in the presence of oxygen
amino acids building blocks of proteins
proteins Chains of amino acids
lipids the starches and sugars present in foods
carbohydrates food consisting of or containing a lot of carbohydrates
enzymes Catalysts for chemical reactions in living things
motor movement
tissues A group of similar cells that perform the same function.
excretory removes waste
hormones Chemicals produced by your glands that regulate the activities of different body cells
mitosis division of the nucleus
meiosis Cell division that produces reproductive cells in sexually reproducing organisms
osmosis diffusion of water
diffusion The process of spread of a feature or trend from one place to another over time
dominant An allele that is always expressed
recessive An allele that is masked when a dominant allele is present
mutation A change in a gene or chromosome.
sensory senses
Created by: enadiavarner
Popular Science 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