Flashcards
Bio 2
Flashcards do conjunto (30)
- 1Taxonomythe science of classification
- 2Morphologythe study of the internal and external appearance of an organism
- 3classificationgrouping organism into an organized scheme( arrangement)
- 4Classification systemkingdom is the broadcast category and species is the mosy specfic category
- 5classfication by letterKingdom= K
Phylum= P
Class= C
Order=O
Family= F
Genus= G
species= s - 6binomial nomenclaturenaming system with a 2 part scientific name
- 7Scientific name2 words(Genus species) name unique to a specific organism
- 8Characteristicsphysical traits of an organism
- 9cladograma branching diagram that shows evolutionary relationship
- 10derived characterunique charactristic that defines a group of organisms
- 11Evolutionchange over time
- 12adaptationinherited characteristic that increases an organisms fitness
- 13artificial selectionselection by humans of desired traits
- 14common descentprinciple that all living things have a common ancestor
- 15fitnessability of an organism to survive and reproduce in its enviorment
- 16natural selectionindividuals that are better suited in a enviroment to survive and reproduce
- 17speciationformation of new species
- 18struggle for existencecompetition among memebers of a species for survivablity
- 19variationdifferances among species
- 20embryologyshows similarities in very-early development
- 21fossilspreserved forms of past organisms
- 22transitional formsshows the change over time in fossil form
- 23geographical distributuionorgins, spread and devolopment of a species
- 24geologyindicates where and when the organisms existed
- 25molecular biologyshows DNA/protein similarities among organisms
- 26nuclear chemistry/radioactive daitngestimates age of fossil organism by determining the age of the rock from its radioactivity
- 27half-lifethe amount of time it takes radioactivity to reduce/change by 1/2
- 28analgous stucturesdifferent structures on different organisms that preform the same
- 29homologous structuressimilar structure on different organisms that dont prefom the same
- 30vestigial structurepart of an organism that serves no useful function or purpose