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2.2&2.3
science flash cards
Term | Definition |
---|---|
organisim | living thing |
cell | unit of basic structure |
unicellular | a single cell organisim |
multicellular | a many celled organisim |
stimulus | a change that makes an organisims surrounding that makes it react |
response | an action or change in behavior |
development | a change to create a more complex organisim |
spontaneous generation | the mistaken idea that living things can come from noniving things |
autotroph | living things that make their own food |
heterotroph | living things that can't make their own food |
homeostasis | internal conditioning |
cassification | grouping of similar things |
taxonomy | the study of how living things are classified |
benomail numeclature | 2 part naming system |
genus | first part of scientific name |
spicies | second part of scientific name |
prockary | organisims whose cell lacks a nucleus |
nucleus | a dense area in a cell that contains nucliec acids |
eukayote | an organisim who contains cells with two nuclei |
cell | a part of a organisim that carries out functions |
microscope | a machine that magnifies |
cell theory | a theoty that explains the relationship between an organisim and its cells |
organelle | a structureinside a cell |
cell wall | a rigid layer of nonliving maferial that surrounds a cell |
cell membrane | a structure that seperates the cell from its enviroment |
cyroplasam | a liquid inbetween the cell membrane and wall |
mitochondria | a structure that converts food into energy |
endolasmic reticulum | a structure that carries protiens |
ribosome | a grainy body in a cell |
gologi body | a sructure that recivies protiens |
chlorphlast | a structure in a plant cell that converts energy into food |
vacuoles | a storage area for the cell |
lysosomes | a structure that breaks certain ,materials in a cell |