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Dunn681
Classification of 6 kingdoms
Question | Answer |
---|---|
Species | a group of organisms that reproduce among themselves |
Taxonomy | branch of biology that names and groups organisms according to their characteristics and evolutionary history |
dichotomous key | instrument used to identify an organism based on certan characteristics |
binomial nomenclature | method of naming organisms by their genus and species |
metabolism | a set of chemical reactions that allow an organism to maintain life |
prokaryotic | cell with no nucleus, such as bacteria |
eukaryotic | cell with no nucleus |
unicellular | organism made of only one cell |
multicellular | organism made of many cells |
autotroph | an organism that makes its own food (producer) |
heterotroph | an organism that consumes other organisms (consumer) |
binary fission | asexual reproduction in bacteria; it splits in two |
conjugation | sexual reproduction in bacteria |
anaerobic | without air |
aerobic | with air |
diploid | the full number of chromosomes |
haploid | half the number of chromosomes |
xylem | carries water and nutrients in a plant |
phloem | carries food in a plant |
phototropism | growth toward light |
geotropism | growth downward becaus of gravity |
hydrotropism | growth toward water |
sessile | organism does not move |
hermaphrodite | an organism that contains both male and female sex organs |
decomposers | organisms that break down dead or decaying organisms |
regeneration | organism regrows body parts (such as a star fish) |
exoskeleton | external skeleton; skeleton is on the outside of body |
endoskeleton | internal skeleton; skeleton on inside of body |
ectothermic | cold-blooded organism; control body temperature through external means |
endothermic | warm-blooded organism; able to maintain its own heat |