Ap Bio Chapter 24

1. a. Speciation-- The origin of a fresh species in growing. b. Ana divisorsis-- AKA phyletic development its the accumulation of changes that piecemeal a given species into a new species with diverse characteristics c. Clado elementsis-- AKA prongy evolution- it is the splitting of a gene pool into two or more disassociate pools, which to to each one one give arise to one or more new species 2. -They define species as a population or collection of populations whose members have the emf to interbreed in spirit and kick upstairs fruitful offspring but argon unable to set well-nigh offspring with those in separate populations. They argon linked by who they can reproduce with. 3. Prezygotic breastworks to echo impede mating or hinder fertilization. Postzygotic hindrances to reproduction go along an organism from developing and/or reproducing 4.

Habitat closing off - populations have sex in distinct habitats and do not meet Prezygotic bar two populations occupy different habitats Temporal isolation: Prezygotic prohibition two populations duplicate at different times of the day, month, moderate or year Behavioral isolation: Prezygotic obstacle sexual competitor limits chance of mating Mechanical isolation: Prezygotic rampart sex variety meat are incompatible Gametic isolation: Prezygotic breastwork Sperm cannot fertilize egg reduce hybrid viability: Postzygotic barrier genes from parents represent and do not mix cut hybrid fertility: Postzygotic barrier chromosomes from parents do not jibe up Hybrid breakdown: Postzygotic barrier - some first gen hybrids are fertile but cannot confrere with original species 5. a. Morphological species concept-Characterizes a species by its body shape, size, and some other structural features. It applied to agamic and sexual organisms and can be useful without the information on gene flow. b. Paleontological species concept-Focuses on morphologically discrete species cognize only from the fossil record. umpteen another(prenominal) species are...If you want to get a full essay, order it on our website: Ordercustompaper.com

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