Question | Answer |
species | a group of organisms that reproduce among themselves |
taxonomy | branch of biology that names and groups organisms according to their charateristics |
dichotomous key | instrument used to identify an organism based on certain charateristics |
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 | a cell with no nucleus, such as bacteria |
eukaryotic | cell with a nucleus |
unicellular | organism made of only one cell |
multicellular | organism made of many cells |
autotroph | an organism that makes its own food (producer) |
hererotroph | an organism that consumes other organisms (consumer) |
bionary fission | asexual reproduction in bacteria;it splits into two |
conjugation | sexual reproduction in bacteria |
anaerobic | without air |
aerobic | with air |
diploid | the full number of chromosomes |
hapliod | half the regular number of chromosomes |
xylem | carries water and nutrients in a plant |
phloem | carries food in a plant |
phototropism | growth toward light |
geotropism | growth downward because 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 a body part (example a starfish) |
exoskeleton | external skeleton; skeleton on the outside |
endoskeleton | internal skeleton; skeleton is on the inside |
ectohermic | cold-blooded organism; control body temerature through external means |
endothermic | warm-blooded organism; able to maintain its own heat |