UNIT 5 terms Flashcards
habitat
the environment in which a species normally lives or the location fo aliving organism
adaptation
a trait possessed by an organism that suits that organism to its environment AND increases the likelihood that the individual with the adaptation will survive and reproduce
line transect
measurements to determine if a particular species is present at different intervals along a line
evolution
a change in allele frequency in a population over a number of generations
belt transect
use of a uadrat along a line to measure abundance of a species along the line
acquired characteristics
features that an individual acquires during its life time
vestigial structures
homologous structures that no longer serve a function in that organism
homologous structures
structures of species that share a common ancestor but the structure has evolved to fit each species’ niche
speciation
the process in which a species undergoes geographic separation leading to divergent evolution. end result is that the species once brought together can’t interbreed. therefore two species have been created
over-reproduction theory
the capacity to over-reproduce seems to be a characteristic of all species causing competition for resources
fitness
the advantage given by a particular adaptation measured by the increase in survivorship and reproduction
sexual selection
evolution will favour the selection of any trait that influences the mating success of the individual ex: males competing for females
recite THE acronym and what it means
King Philip Could Only Find Green Socks
Kingdom Phylum Class Order Family Genus Species
morphological species concept
species are organisms that share similar structural features
species
a group of organisms that can interbreed and produce fertile offspring
genome
all the genetic information possessed by and organism
genome size
the number of base pairs (the simpler the gene, the less base pairs)
