Biology 40s Exam - Diversity of Life Unit

what is the basic unit of all living organsims

the cell
what are the 3 domains of life
- archea
- eubacteria
- eukaryota
define domain archea
- ancient life
- salt-water and heat loving microbes
- found in hydrothermal vents
- oldest life forms
- anerobic
- autotrophic (chemotrophic)
define domain eubacteria
- true bacteria
- anything with prokaryotic cells
define eukaryota
- anything with eukaryotic cells
- 4 kingdoms:
- -protists
- -fungi
- -plants
- -animals
define classification

to arrange into groups of categories
define taxonomy
- the science of classifying and naming living organsims
- Carl Lannaeus invented binomial nomenclature
what is the hierachical classification
- kingdom
- phylum
- class
- order
- family
- genus
- species
define dichotomous key

step by step key to figuring out which species you are dealing with
which is the most broadest and most specific classification

species
how are prokaryotic and eukaryotic alike
- contain dna
- similar pattern of metabolism
- have cell membranes
- diverse in forms
- some are unicellular organisms
how are prokaryotic and eukaryotic cells different
- prokaryotic:
- no nucleus
- smaller
- has thick cell wall
- no cytoskeleton
- unicellular
- eukaryotic:
- 10x larger in diameter
- true nucleus
- membrane enclosed organelles
- have cytoskeleton
- multicellular
- may have cell wall
- in all living organisms

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Biology 40s Exam - Diversity of Life Unit

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biology

Updated

2015-01-25T03:33:32Z

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