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43 Cards in this Set
- Front
- Back
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multicellular
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organisms that are composed of many cells. they are specialized to do certain tasks. ex. humans, dogs, animals
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Unicellular
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single celled organisms EX. bacteria
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stimulus
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a change in an organism that causes it to react Ex. car horn
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response
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an action or change in behavior ex. jumping in astonishment
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spontaneous generation
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the mistaken idea that living things can srise from non-living things.
Ex. bugs from rotten meat |
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autotroph
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organisms that make their own food ex. plants, algae
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heterotroph
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organisms that can't make their own food ex. animals, mushrooms, slime molds
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homeostasis
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the maintenance of stable internal conditions. ex. a fox having long hair in the winter and short hair in the summer
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classification
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the grouping of things based on their similarities
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taxonomy
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the study of these classifications of organisms
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who created the classification system we use today?
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carlous linnaeus
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what are the 3 ways living things are classified
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cell type, ability to make food, number of cells in their bodies
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how many organisms does a species contain?
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one
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list the groups of classification in order from biggest to smallest
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domain
kingdom phylum class order family genus species |
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list the six kingdoms
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archaebacteria
eubacteria protists fungi plantae animalia |
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describe archaebacteria
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proaryote, unicellular, lives in very hot or very cold places
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what is a prokaryote?
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has no nucleus
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what is a eukaryote?
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has a nucleus
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describe eubacteria
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unicellular, prokaryote, lives in a more normal environment
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describe protists
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very simple, eukaryote, unicellular
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describe fungi
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eukaryote, multicellular decomposer
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describe plantae
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multicellular eukaryote, autotroph
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describe animalia
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multicellular, eukaryotes, heterotroph
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which kingdom do humans belong to?
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animalia
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binomial nomenclature
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the 2 word latin naming system with only the first letter capitalized which all scientific names use.
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what is the advantage of binomial nomenclature?
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scientists from all over the world can communicate with each other
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observe
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to look or watch while interpreting data
also in the present |
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qualitative
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observations using the 5 senses
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quantitative
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observations using #s and letters
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inferring
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explain andd interpret data from about the past
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predicting
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to make an observation or educated guess about the future
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controlled experiment
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experiment when only one variable is changed
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independent variable
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the manipulated variable
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dependent variable
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the variable that responds to the independent variable
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can you have an independent variable without a dependent?
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yes
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dependent v. w/ no independent?
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no
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what do scientists look at to divide cells into kingdoms?
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cell type, ability to make food, # of cells in the body
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cells
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the basic unit of structure and function in all living things.
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robert hooke's cork
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had dead cells b/c it was once a living organism (oak tree bark)
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CELL THEORY
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1. ALL LIVING THINGS ARE COMPOSED OF CELLS
2. ALL CELLS COME FROM OTHER CELLS 3. CELLS ARE THE BASIC UNIT OF STRUCTURE AND FUNCTION OF ALL LIVING THINGS |
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electron microscope
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uses electron beams for light instead of bulbs
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6 steps of the scientific method
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1. answering ?s
2. develop a hypothesis 3. design an experiment 4. collect and interpret data 5. draw conclusions 6. communicating |
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6 characteristics of all living things
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cells
similar chemicals use energy respond to their surroundings reproduce grow/develop |
