Term
|
Definition
| community plus its physical environment |
|
|
Term
|
Definition
comprised of the Earth's crust, water's and atmosphere inhabited by organisms
|
|
|
Term
|
Definition
| an organisms state of biological balance |
|
|
Term
|
Definition
| the discipline of identifying and grouping organisms according to certain rules. |
|
|
Term
|
Definition
| Bateria, Archaea, Eukarya |
|
|
Term
|
Definition
| has a membrane bound nucleus |
|
|
Term
|
Definition
contains unicellular prokaryotes
can live in water void of oxygen, and are able to survive in harsh environmental conditions |
|
|
Term
| Eukarya has four kingdoms |
|
Definition
| Protista, Fungi, Plantae, and Animalia |
|
|
Term
|
Definition
| the process in which speie inherit a genetic change that makes better suited to their environment |
|
|
Term
| Two ecosystems threathened by human population |
|
Definition
| rainforest and coral reef |
|
|
Term
|
Definition
| the varibility in a species genes and ecosystems |
|
|
Term
|
Definition
| allows a person to combine isolated facts into a cohesive whole |
|
|
Term
|
Definition
| if/then logic to make a prediction that the hypothesis can be supported by experimentation. |
|
|
Term
|
Definition
| DNA sequences in a n organism's genome that differ by a single nucleotide |
|
|
Term
|
Definition
| evolution that occurs within a population |
|
|
Term
|
Definition
| Total of all the alleles in a population |
|
|
Term
| The Hardy-Weinburg principle |
|
Definition
|
|
Term
|
Definition
| individuals pair by chacne and not according to their genotypes and phenotypes |
|
|
Term
|
Definition
|
|
Term
|
Definition
| the movement of alleles among populations by migration of breeding individuals |
|
|
Term
|
Definition
| change in allele frequencies of a gene pool due to chane rather than selection by the environment. |
|
|
Term
|
Definition
prevents most genotypes from participating in productions of the next generation
caused by a sever reuction in ppopulation size due ti a natural disaster, predation, or habitat reduction |
|
|
Term
|
Definition
| A genetic drift were rare alleles or combinations occur in higher frequency in a population islolated from the general population |
|
|
Term
|
Definition
| favors the phenotype that is the most adaptive under the present evironmental Circumstances. |
|
|
Term
| Types of Natural Selection |
|
Definition
| Stabilzing, Directional and Disruptive |
|
|
Term
|
Definition
| occurs when extreme penotypes are eliminated and the intermediate phenotype is favored. |
|
|
Term
|
Definition
| occurs when an extreme penotype is favored; the distribution curve shifts that direction |
|
|
Term
|
Definition
| adaptive changes in males and females hat lead to an increased ability to seure a mate. |
|
|
Term
|
Definition
| ability to produce surviving offspring |
|
|
Term
|
Definition
| females choose mates based on traits for improving the survival of offspring |
|
|
Term
|
Definition
| females chose mates on the basis of traits that attract them to females; |
|
|
Term
|
Definition
| males and females differ in size and other traits |
|
|
Term
| Prezygotic isolating mechanisms |
|
Definition
| antomical or behavorial differences between the members of two species that prevent mating or make it unlikely fertilization will happen |
|
|
Term
|
Definition
when two speies occupy different habitats even within the same geographical range
they are less likely to meet and to attempt to reproduce |
|
|
Term
|
Definition
| when two species live in the same location but each reprodues at different times of the year |
|
|
Term
|
Definition
| results from differences in mating behavor between two species |
|
|
Term
|
Definition
| results from differences in mating behavor between two species |
|
|
Term
|
Definition
| incompatibilty of two different species so they cannot fuse to form a zygote |
|
|
Term
| Postzygotic isoloation mechanisms |
|
Definition
| prevent development of hybrid after mating has taen place |
|
|
Term
|
Definition
| when hybrids do not live to reproduce |
|
|
Term
|
Definition
| occurs when the hybrid offspring are sterile( They can survive but they cant produce offspring of their own) |
|
|
Term
|
Definition
| the splitting of one species into two or more species or te transformation of one species into a new species over time. |
|
|
Term
|
Definition
| the offspring are fertile but the f2 generation is sterile (the children of their children cant reproduce) |
|
|
Term
|
Definition
| when new species result from populations being separated by a geographial barrier that prevents their members from reproducing |
|
|
Term
|
Definition
| Geographic isolatiation and Reproductive isolation |
|
|
Term
|
Definition
type of allopatric speciation
when a single ancestral species gives rise to a variety of species, each adapted to a specific environment |
|
|
Term
|
Definition
| when members of a single population develop a genetic difference that prevents them from reproducing with the parent type |
|
|
Term
|
Definition
A eurkaryote with three or more complex set of chromosomes
mostly seen in plants
can reproduce with itselfs by replicating its chromosomes |
|
|
Term
|
Definition
| the evolution of a new species and higher levels of classification (viewing evolution from a broader, larger perspective) |
|
|
Term
|
Definition
| says speciation occurs after populations became iolated ith each group continuing slowly on its own evolutionary pathway |
|
|
Term
|
Definition
| complex spherical units that spontaneously form when concentrated mixtures of macormolecules are held in the right temp |
|
|
Term
|
Definition
| an organanism that ant synthesize organic componds from inorganic substances |
|
|
Term
|
Definition
| organism that makes organic molecules from inorganic nutrients |
|
|
