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.
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

Science Ch1 Sec. 1-3

What is a cell? the basic unit of structure and function in an organism
What does unicellular mean? The organism has only one cell
What does multicellular mean? The organism has more than one cell
What is a stimulus? a change in an organism's environment that causes a reaction
What is a response? How an organism reacts to a change in its surroundings
What is development? how an organism grows and changes to become a more complex organism
What is Spontaneous Generation? the incorrect theory that life can come from nonliving things
What is a controlled experiment? A scientist carries out two tests that are identical in every respect except for one factor
Define Autotroph: organisms that make their own food
Define Heterotroph: organisms who have to go and find food since they can not make their own
What is Homeostasis? the maintenance of stable internal conditions
Define Classification: the process of grouping things based on their similarities *biologists use it to organize things into groups to make them easier to study*
Define Binomial Nomenclature: the naming system Linnaeus created. In Latin, binomial means "two names" This system names an animal's genus and species
What is a Genus? the first word in an organism's scientific name
What is a Species? a group of similar organisms that can mate and produce offspring that can also mate and reproduce
define Evolution: the process by which species gradually change over time
what is a Prokaryote? an organism whos cell/cells lack a nucleus
what is a Eukaryote? an organism whos cell/cells have a nucleus
What are the 6 characteristics of living things? They contain similar chemicals, they respond to their surroundings, they can reproduce, they use energy, they have cellular structure, and they grow and develop
How did Pasteur's experiment show spontaneous generation did not occur? It showed that the air carried the bacteria to the broth where it grew, and that the broth didn't create it
The arctic fox has thick, dense fur in the winter and thin fur in the summer. How does this help it maintain homeostasis? The thick fur traps heat to keep it warm and the thin fur doesn't so it can stay cooler
What are the levels of classification in order? Domain Kingdom Phylum Class Order Family Genus Species
What are the 3 domains into which organisms are classified? Eukarya, Bacteria, and Archaea
What do you need to know to determine which domain an organism is in? If it is unicellular/multicellular, If it is a eukaryote/prokaryote, If it is a heterotroph/autotroph, and sometimes where it lives
What are the four kingdoms of Eukaryotes? Plant Animal Fungus Protist
Which 2 domains include only organisms that are prokaryotes? Bacteria and Archaea
What two kingdoms contain only heterotrophs? Animals and Fungi
What do the cells of protists, animals, plants, and fungi have in common? the cells all have nuclei so they are eukaryotes
Compare and contrast Plants and Protists. They are both autotrophs All plants are multicellular but some protists are unicellular
What are the most abundant chemicals in cells? water and carbohydrates
How do organisms differ from nonliving things? Organisms are made of cells and nonliving things are not
Which of the following birds are more closely related and how do you know: Parus bicolor, Tachycineta bicolor, and Parus atricapillus? Parus bicolor and Tachycineta bicolor because they are both the same species (bicolor) so they share more characteristics
A group of scientists are planning a space mission to a new planet with unknown conditions. What basic human needs must they consider before they decide what supplies to take with them? They need water, food, enough space, and a suit to keep them at a good temperature in case it's very hot/cold
There is a multicellular and autotrophic organism. You find out that it is a eukaryote. Which kingdoms could it belong to and why? it could be a plant or protist because those can be multicellular, they are autotrophs, and they are eukaryotes so everything matches up
Which kingdoms are only heterotrophs? Animals and Fungi
What is a taxonomic key? a useful tool for determining the identity of organisms
Describe each domain. Archaea - unicellular, auto/heterotrophs, prokaryotes, live in harsh conditions Bacteria - unicellular, auto/heterotrophs, prokaryotes, live most places Eukarya - multicellular/unicellular, autotrophs or heterotrophs, eukaryotes, live almost everywhere
What did Redi's experiment prove? It proved the flies laid the eggs, not the meat and it helped disprove spontaneous generation
Created by: imulita55