geographic distribution the distribution of species in geographical areas.
geotropism the turning of a plant away from or toward the earth.
gills structures that allow fish to exchange gases with their environment.
The geographic distributions and phylogenetic relationships of surface taxa and related subterranean taxa can help to distinguish between the two key hypotheses of origin; ...
study of geographic distributions of organisms in space
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby
^ Malaria: Geographic Distribution. CDC Malaria website. Retrieved on 2007-06-15.
^ a b c Breman J (2001). "The ears of the hippopotamus: manifestations, determinants, and estimates of the malaria burden.". Am J Trop Med Hyg 64 (1-2 Suppl): 1-11. PMID 11425172.
Geographic distribution of the 84 peach accessions. Figure S2. Relationship between the identified SNPs and the sample sizes. Figure S3. Relationship between the called SNPs and the sequencing depth. Figure S4. Total depth of all genotype sites according to SNPs in the 84 samples.
The variation in the population is clinal—at either extreme of the population's ~, typical individuals are clearly different, but the transition between them is seamless and gradual.
The first two principles indicate that the current ~ of a species is determined by how its ecological limitations are related to the environmental conditions it encounters. Species with similar requirements will be found together in the same locations.
Personal names, given or surname, as cultural characteristics, as ethnological or religious patterns, as indications of the ~ of families and inbreeding, etc. Analysis of isonymy, the quality of having the same or similar names, is useful in the study of population genetics.
allopatry Populations or species with nonoverlapping ~s. Contrast with sympatry.
alpha-helix Literally the first spiral arrangement of the genetic DNA molecule; regular coiled arrangement of polypeptide chain in proteins; secondary structure of proteins.
Darwin's interest in the ~ of species was further stimulated by the Beagle's visit to the Galapagos, a group of young volcanic islands 900 km west of the South American coast.
Plant Geography the study of the ~ of plant species
(geo = earth; graph = to write) ...
See also: What is the meaning of Biology, Species, Character, Population, Evolution?