Flashcards in Lesson 7 - Species Deck (20)
Swedish naturalist, founding father of taxonomy, creator of binomial species name.
The science of naming and organizing organisms into related groups
Contains genus name (generic name) and specific epithet
Shared by all species of the same genus
May be shared by unrelated species (Tyrannosaurus rex, othnielia Rex, nuralagus Rex)
Rule of priority
Once a species is officially given a binomial name, the name cannot be changed unless the organism turns out to not be a new species)
Not published until it has been reviewed by other scientists to verify the contents are legitimate and scientifically reasonable
Physical example of the newly found species, kept in a research institution so other scientists may study it. Does not need to be a complete specimen.
Individuals that differ in morphology because they belong to different species.
Individuals that belong to the same species but have different morphologies
Males and females looking different from eachother
Ovarian ion visible between young and old individuals of the species (besides simple size differences)
Normal variation that exists among individuals of the same species
Geologically caused variation due to plastic variation
Biological species concept
Defines a species as a group of organisms that can successfully interbreed
Any grouping of organisms that live in the same geographic area and interbreed
Morphological species concept
Defines a species as a group of organisms that share a certain degree of physical similarity
Palaeontologists who require more differences before they consider two species to be distinct
Palaeontologists who require fewer differences before they consider two species to be distinct