AP Bio Chapter 24
Help!
|
|
||||
|---|---|---|---|---|---|
| macro evolution | the origin of new taxonomic groups
🗑
|
||||
| Speciation | the origin of new species
🗑
|
||||
| anagenesis or phyletic evolution | the accumulation of changes associated with the tranformation of one species into another
🗑
|
||||
| Cladogenesis or branching evolution | the building of one or more new species from a parent species that continues to exist
🗑
|
||||
| species | a latin word meaning "kind" or "apperance"
🗑
|
||||
| biological species concept | emphasizes reproductive isolation, defines a species as a population or group populations whose members have the potential to interbreed with one another but cannot produce viable, fertile offspring with members of other species
🗑
|
||||
| Prezygotic barriers | impede mating between speicies or hinder the fertilization
🗑
|
||||
| habitat isolation | two species that live in different habitats within the same area may encounter each other rarely, if at all, even though they are not technicallt geographically isolated
🗑
|
||||
| behavioral isolation | specials signs that attract mates
🗑
|
||||
| temporal isolation | two species that breed during different times or day, seasons, or years cannot mix their gametes
🗑
|
||||
| mechanical isolation | closely related species may attempt to mate but fail to consummate the act beacuase thar are anatomically incompatible
🗑
|
||||
| gametic isolation | when the gametes refuse to make a zygote
🗑
|
||||
| post zygotic barriers | preventsthe hybrid zygote from developing into a viable, fertile fetus
🗑
|
||||
| reduced hybrid vialbility | when prezygotic barriersa are crossed and hybrid zygotes are formed, genetic incompatability between two species may abort development of the hybrid at some embryonic stages
🗑
|
||||
| reduced hybrid fertility | reproduction isolation is intact if the hybrids are completely or largelt sterile
🗑
|
||||
| hybrid break down | when the hybrid offspring mate with one another or with different species, offspring of the next generation or feeble or sterile
🗑
|
||||
| morphological species concept | the idea that species are defined by measurable anatomical criteria
🗑
|
||||
| recognition species concept | emphasizes mating adaptations that become fixed in a population as individuals "recognize" certain characteristics of suitable mates
🗑
|
||||
| Cohesion species concept | emphasizes cohension of phenotype as the basis of species integrity, with each species defined by its integrated complex of genes and set of adaptations
🗑
|
||||
| Ecological species concepts | emphasizes specific roles (niches), their positions and functions in the environment
🗑
|
||||
| evolutionary species concept | emphasizes evolutionary lineages and ecological roles
🗑
|
||||
| allopatric speciation | a geographical barrier that physically isolates populations initially blocks gene flow
🗑
|
||||
| sympatric speciation | intrinsic factors, such as non random mating or chromosomal changes, that alter gene flow, become gradually genetically isolated even though their ranges overlap
🗑
|
||||
| adaptive radiation | the evolution of many diversely adapted species from a common ancestor, darwin's finches
🗑
|
||||
| polyploidy | accidents in cell division that result in extra sets of chromosomes
🗑
|
||||
| autopolyploid | an individual that has more than two chromosome sets, all derived from a single species
🗑
|
||||
| allopolyploid | the contribution of two different species to a polypolid hybrid
🗑
|
||||
| hybrid zone | a region where two related populations that diverged after becoming geographically isolated make secondary contact and interbreed where their geopgraphical ranges overlap
🗑
|
||||
| puntuated equilibrium | a model that says species diverge in spurts of rapid change, instead of slowly and gradually
🗑
|
||||
| exaptation | a structure that evolved in one context and became co-opted for another function
🗑
|
||||
| allometric growth | a difference in the relative rates of growth of various parts of the body, helps shapes an organism
🗑
|
||||
| paedomorphosis | a sexually mature adult retains features that were juvenile structures in its evolutionary ancestors
🗑
|
||||
| heterochrony | a general term for evolutionary changes in the timing or rate of development
🗑
|
||||
| homeostasis | alteration in what biologists are fond of calling the bauplan of an organism(basic body design) or spatial arrangement of body parts
🗑
|
||||
| species selection | analogous to the production of a trend within a population by natural selection
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
stophammertime1290
Popular Biology sets