Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

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.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
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

LS LSAF Chapter 1

Exploring and Classifying Life

Scientific Method The set of skills used to solve problems in an orderly way
Hypothesis A proposed answer to a question which can be tested.
Theory An explanation for things that is supported by scientific knowledge based on many observations and/or experiments
Organism Any Living thing
Homeostasis The ability to control proper conditions inside no matter what is happening outside an organism
Growth One of the Life Processes. The ability of an organism to develop
Respiration One of the Life Processes. The ability of an organism to get energy from food
Nutrition One of the Life Processes. The ability of an organism to take in food and useful gases
Excretion One of the Life Processes. The ability of an organism to get rid of wastes
Sensitivity One of the Life Processes. An organism's ability to recognize and respond to changes in the environment
Movement One of the Life Processes. The ability of an organism to transport substances
Reproduction One of the Life Processes. The ability of an organism to make more of its own kind, to continue its species
Life Processes The collection of activities and characteristics all living things share
Spontaneous Generation Theory that states that living things can come from non-living things
Biogenesis Theory that states that living things come from other living things
Cell Theory The idea that the cell is the basic unit of all living creatures, that all living things are made of cells, and that only living cells can produce other living cells
Francesco Redi In 1668, he conducted an experiment whose result showed that maggots do not generate from rotting meat.
John Needham In 1745, he conducted a flawed experiment whose result showed that bacteria could spontaneously develop from sterilized broth
Lazzaro Spallanzani In 1768, he conducted Needham's experiment with more rigid controlled variables. The results showed that bacteria do not spontaneously generate from broth
Louis Pasteur In 1859, he conducted an experiment whose results showed that bacteria do not spontaneously generate from broth. He developed the s-curve flask
Alexander Oparin In 1924, he hypothesized that energy from the sun, lightning, and the earth's core generated molecules which would later become the basis for life
Stanley Miller & Harold Urey In 1953, they conducted an experiment whose results showed that organic molecules could be produced through the energizing of inorganic gases with electricity
Carolus Linnaeus Developed the two-part naming system used to classify organisms
Aristotle Ancient Greek who developed a system of organizing creatures based on differences and likeness in form
Phylogeny The historical development of an organism
Domain A level of classification that contains the greatest number of similar organisms
Kingdom A level of classification just below domain
Species A level of classification containing the smallest number of similar organisms
Binomial Nomenclature The two-part naming system applied to every living creature. Literally, this means "Two-Name Name Calling"
Dichotomous Key A system used to identify living creatures based on one characteristic at a time. Literally, this means "Two-branched Key"
Scientific Variable Any factor, trait, or condition that can exist in differing amounts or types and may affect the results of an experiment.
Scientific Problem A "who", "what", "when", "where", or "why". Always posed as a question.
Created by: MrGross
Popular Biology sets




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:
restart all cards