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A quiz that will help you for Dr. B's test on 10-15.

organism

living thing

cell

the basic unit of structure and funciton in an organism

unicellular

single-celled organisms

multicellular

organisms that are composed of many cells that are specialized to do certain tasks

autotroph

an organism that makes its own food

heterotroph

an organism that cannot make its own food

homeostasis

the maintenance of stable internal conditions despite external conditions

stimulus

a change in an organism's surroundings that causes the organism to react

response

an action or change in behavior

development

the process of change that occurs during an organism's life to produce a more complex organism

spontaneous generation

the mistaken idea that living things can arise from nonliving sources

classification

the process of grouping things based on their similarities

taxonomy

the scientific study of how living things are classified

binomial nomenclature

the naming system Carolus Linnaeus used

genus

a classification grouping that contains similar, closely related organisms

species

a group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce

prokaryote

organisms whose cells lack a nucleus

eukaryote

organisms with cells that contain nuclei

nucleus

a dense area in a cell that contains nucleic acids-the chemical instructions that direst the cell's activities

microscope

an instrument that makes small objects look larger

cell theory

a widely accepted explanation of the relationship between cells and living things

magnification

the ability to make things look larger than they are

resolution

another term for the sharpness of an image

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