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Bacteria to Plants
Living Things
33
Science
8th Grade
12/21/2011

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Term
organism
Definition
A living thing.
Term
Cell
Definition
The basic unit of structure and function in an organism.
Term
Unicellular
Definition
Made of a single cell.
Term
Multicellular
Definition
Consisting of many cells.
Term
Stimulus
Definition
A change in an organisms surroundings that causes the organism to react.
Term
Response
Definition
An action or change in behavior that occurs as a result of a stimulus.
Term
Developement
Definition
The process of change that occurs during an organisms life to produce a more complex organism.
Term
Spontaneous Generation
Definition
The mistaken idea that living things arise from nonliving sources.
Term
Controlled Experiment
Definition
An experiment in which all factors are identical except one.
Term
Autotroph
Definition
An organism that makes its own food
Term
Heterotroph
Definition
An organism that cannot make its own food.
Term
Homeostasis
Definition
The maintenance of stable internal conditions.
Term
Classification
Definition
The process of grouping things based on their similarities.
Term
Taxonomy
Definition
the scientific study of how living things are classified.
Term
Binomial nomenclature
Definition
The system for naming organisms in which each organism is given a unique, two-part scientific name indicating its genus and species.
Term
Genus
Definition
A classification grouping that consists of a number of similar, closely related species.
Term
Species
Definition
A group of similar organisms taht can mate with eachother and produce offspring that can also mate and reproduce.
Term
Evolution
Definition
the process by which species gradually change over time.
Term
Name the six characteristics of Living Things.
Definition
Cellular organization, chemicals of life, energy use, response to surroundings, growth and developement, and reproduction.
Term
Name the four chemicals of life and give an example.
Definition
Carbohydrates - bread, lipids - oils, protein - meat, nucleic acid - DNA
Term
Give and example of a stimulus and a response.
Definition
The bell rings, kids change classes.
Term
What is the difference between growth and developement?
Definition
Growth is something getting bigger, development is a process of change that occurs in an organisms life to produce a more complex organism.
Term
What is the difference between Asexual and Sexual?
Definition
Asexual has one parent ex: yeast, sexual has two ex: frogs.
Term
What experiment did Francesco Redi do that helped disprove spontaneous generation?
Definition
He covered a jar of rotting meat witha lid and no flies hatched. Proving that living things come from living things.
Term
What did Louis Pasteur do in his experiment that disproved spontaneous generation?
Definition
He boiled the broth and the bacteria was killed and it did not spoil.
Term
Name the four things that organisms need to survive.
Definition
Food, water, living space and stable internal conditions
Term
What is the difference between Classification and taxonomy?
Definition
Classification is grouping things based on their similarities making it easier to study, taxonomy is the scientific study of how things are classified.
Term
What did Linnaeus do to become the "Father of Taxonomy"?
Definition
He created the Naming system called Binomial Nomenclature that means two names and in two parts. genus + species
Term
What is the scientific name for human and what is the correct way of writing it?
Definition
Homo sapiens
Term
What is the scientific name for a housecat?
Definition
Felis domesticus
Term
What are the 7 levels of classification?
Definition
Kingdom, phylum, class, order, family, genus,and species.
Term
How is a dichotomous key helpful?
Definition
It asks you questions and helps you identify an organism.
Term
What did Charles Darwin discover about the finches (birds) of the Galapagos Islands?
Definition
The finches were similar but they had many differences in their beaks.
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