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24 Cards in this Set
- Front
- Back
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Where are safety procedures imp.?
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Everywhere
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Smallest units considered to be alive?
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cells
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characteristics of life...?
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DNA
Homeostasis Change over time reproduction grow and develop genetic code respond to enviroment cells evolution |
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controlled experiment allows scientists to isolate and test...
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a single variable
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Organisms keep internal conditions fairly constant.....?
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homeostasis
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what should yopu do if you break a beaker in the lab?
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throw away pieces in a broken glass box.
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information from observing...?
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hypothesis
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Gram staining is used for...?
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to tell what the cell wall is made of.
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Basic structure of a virus....
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composed of a core DNA and RNA, surrounded by a protien coat.
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Bacteria is used for what in the Human Enviro. ...?
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makes vitamens
fixes nitrogen cleans oil spills makes yogurt lives in humans |
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what are prokaryotes?
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unicellular organisms WITHOUT NUCLEUS
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Role of bacteria in the enviroment...?
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decomposers
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Viruses are specifiaclly like...?
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Vary greatly in size and structure
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Original source of all energy in most ecosytems...?
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the SUN
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All members of a particular species that live in same area...?
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community
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Lava erupts, destroys area, lichens grow- replaced by grasses eventually, conifers and then dicidous forest...process is called what?
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ecological sucession
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Warblers of diff. can live in same tree b/cuz...?
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they can occupy diff. niches w/in a tree
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algae at the beginning of a food chain..?
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autotroph( producers)
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Organism that cant make own food...?
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heterotroph
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organisms break down nutrients in dead matter...?
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decomposers
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what biotic factor would affect size of a specific ecosystems...?
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#'s and kinds of predators
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Abiotic Examples:
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trees, air, water, and climate
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habitat of an animal...?
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its home
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competeive exclusion principle...?
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species can occupy same niche at same time
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