Chapter 14 - Speciation and Punctuated Equilibrium
Mammary gland
A milk-producing structure on a mammal
Co-adaptation
One species becoming dependent on another species
Asexual reproduction
Reproduction that involves one parent and no egg or sperm
Stasis
Showing little change over time
Archaea
The domain of eukaryotic organisms
Sympatric speciation
When similar organisms live nearby, but do not interbreed due to differences in behavior
Reproductively isolated
A division between populations that once mated, but can no longer mate and produce fertile offspring
Subpopulation
A division of a population
Subspecies
A division of a species
Community
A group of different populations that live in the same area
Kingdom
A group of similar phyla or divisions
Genus
A group of similar species
Instantaneous speciation
A new species formed in one to several generations
Coordinated stasis
A pattern where most species appear at about the same time
Biological species concept
A principle that defines a specis as populations that can interbreed and produce offsprings
Ecological species concept
A principle that defines species as populations that can interbreed and produce offspring based on their niche
Phylum
A subdivision of the animal kingdom
Three - domain system
A system that classifies all living things into three broad groups
Punctuated equilibrium
A theory that states species stay the same for a long time, then new species evolve suddenly due to global changes and mass extinction
Classify
to group
Fertile
Capable of producing offspring
Biochemistry
Chemistry that deals with the chemical compounds and processes in organisms
Mass extinction
The dying out of large numbers of species in a short period of time
Morphology
The study of differences in body forms of organisms
Niche
The way of life of a species
Interbreed
To breed together
Allopatric speciation
When similar organisms do not interbreed due to physical barriers
Division
a subdivision of the plant kingdom