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Gr7 Sci Vocab Ch1 Twiz
Terms in this set (15)
What is the definition of cell?
smallest unit of life
What is the definition of homeostasis?
ability to maintain steady internal conditions when outside conditions change
What is the definition of multicellular?
made of 2 or more cells
What is the definition of organism?
thing that has all the characteristics of life
What is the definition of unicellular?
made of one cell
What is the definition of binomial nomenclature?
naming system that gives each organism
What is the definition of cladogram?
branched diagram that shows the relationships among organisms
What is the definition of dichotomous key?
series of descriptions arranged in pairs that can be used to identify an unknown organism
What is the definition of genus?
group of similar species
What is the definition of kingdom?
classification category that ranks above phylum and below domain
What is the definition of species?
group of organisms that have similar traits and produce fertile offspring
What is the definition of atom?
building block of matter composed of protons, neutrons and electrons
What is the definition of compound microscope?
uses more than one lens to magnify an image
What is the definition of electron mircroscope?
uses a magnetic field to focus a beam of electrons through an object or onto an objects surface
What is the definition of light microscope?
uses light to enlarge an image of an object
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