Biological Diversity Unit Review
... Reference: read pages 8 – 85 in Science in Action 9 text. 1. Give 2 Examples of Abiotic factors. a. ...
... Reference: read pages 8 – 85 in Science in Action 9 text. 1. Give 2 Examples of Abiotic factors. a. ...
EXAM 4-Fall2005.doc
... B) only the largest and strongest survive. C) random assortment of genes results in better characteristics in the following generations. D) the best adapted individuals survive and reproduce, contributing the most genes to the next generation. E) individuals that mutate in response to their environm ...
... B) only the largest and strongest survive. C) random assortment of genes results in better characteristics in the following generations. D) the best adapted individuals survive and reproduce, contributing the most genes to the next generation. E) individuals that mutate in response to their environm ...
Document
... Differences maintained in common garden (genetic). • Differ in physiology: pressures at which xylem cavitates and leaves wilt differ among subspecies. Differences maintained in common garden. ...
... Differences maintained in common garden (genetic). • Differ in physiology: pressures at which xylem cavitates and leaves wilt differ among subspecies. Differences maintained in common garden. ...
Transformation of all records with a function
... • Quality Control of Noisy High-Throughput Data • Tests, Estimation/Inference, Classification/Clustering • Multi-dimensional/High-dimensional Data • Random value-based approaches • Others : Experimental Designs ...
... • Quality Control of Noisy High-Throughput Data • Tests, Estimation/Inference, Classification/Clustering • Multi-dimensional/High-dimensional Data • Random value-based approaches • Others : Experimental Designs ...
Microevolution File
... each end of the distribution. Stabilizing Selection: Type of natural selection for a polygenic trait in which phenotypes at both ...
... each end of the distribution. Stabilizing Selection: Type of natural selection for a polygenic trait in which phenotypes at both ...
Microevolution
... This guide was created by Danielle Phan and Jin Yu. To learn more about the student authors, http://www.ck12.org/about/ck-12-interns/. ...
... This guide was created by Danielle Phan and Jin Yu. To learn more about the student authors, http://www.ck12.org/about/ck-12-interns/. ...
hssv1003t_powerpres (1)
... • Small plots of land for a single population is usually not enough because a species confined to a small area could be wiped out by a single natural disaster. While other species require a large range to find adequate food. • Therefore, protecting the habitats of endangered and threatened species o ...
... • Small plots of land for a single population is usually not enough because a species confined to a small area could be wiped out by a single natural disaster. While other species require a large range to find adequate food. • Therefore, protecting the habitats of endangered and threatened species o ...
V Sem Zool Punctuated Equilibrium
... The punctuated equilibrium hypothesis states that speciation events occur rapidly in geological time - over hundreds of thousands to millions of years and that little change occurs in the time between speciation events. In other words, change only happens under certain conditions, and it happens rap ...
... The punctuated equilibrium hypothesis states that speciation events occur rapidly in geological time - over hundreds of thousands to millions of years and that little change occurs in the time between speciation events. In other words, change only happens under certain conditions, and it happens rap ...
18 Sp Abun Local Diversity 2009
... • (delta) = available pool of species within dispersal distance (up to continental scale) • determined evolutionarily ...
... • (delta) = available pool of species within dispersal distance (up to continental scale) • determined evolutionarily ...
Speciation slides
... become genetically distinct from each other. They must become sufficiently different from each other that if the two populations were brought together again, they would not be able to share their gene pools. ...
... become genetically distinct from each other. They must become sufficiently different from each other that if the two populations were brought together again, they would not be able to share their gene pools. ...
Notes Chapter 16 The Evolution of Populations and Species
... 1) Individuals that display a more extreme form of a trait have greater fitness than individuals with an average form of the trait 2) Alleles promoting the extreme phenotype become less common in the population a. Characterizes the evolution of single gene traits b. For example antibiotic resistance ...
... 1) Individuals that display a more extreme form of a trait have greater fitness than individuals with an average form of the trait 2) Alleles promoting the extreme phenotype become less common in the population a. Characterizes the evolution of single gene traits b. For example antibiotic resistance ...
SPECIES AND SPECIATION
... If certain of these combinations is best suited to a new habitat, a third species may arise that is somewhere intermediate between the parental species. However, it is also possible that, if the hybrids have equal or greater fitness than either parental population, complete introgression may occ ...
... If certain of these combinations is best suited to a new habitat, a third species may arise that is somewhere intermediate between the parental species. However, it is also possible that, if the hybrids have equal or greater fitness than either parental population, complete introgression may occ ...
Species distribution
Species distribution is the manner in which a biological taxon is spatially arranged. Species distribution is not to be confused with dispersal, which is the movement of individuals away from their area of origin or from centers of high population density. A similar concept is the species range. A species range is often represented with a species range map. Biogeographers try to understand the factors determining a species' distribution. The pattern of distribution is not permanent for each species. Distribution patterns can change seasonally, in response to the availability of resources, and also depending on the scale at which they are viewed. Dispersion usually takes place at the time of reproduction. Populations within a species are translocated through many methods, including dispersal by people, wind, water and animals. Humans are one of the largest distributors due to the current trends in globalization and the expanse of the transportation industry. For example, large tankers often fill their ballasts with water at one port and empty them in another, causing a wider distribution of aquatic species.Biogeography is the study of the distribution of biodiversity over space and time. It is very useful in understanding species distribution through factors such as speciation, extinction, continental drift, glaciation, variation of sea levels, river capture and available resources. This branch of study not only gives a description of the species distribution, but also a geographical explanation for the distribution of particular species. The traditional biogeographic regions were first modeled by Alfred Wallace in The Geographical Distribution of Animals (1876). These were based on the work of Sclater's terrestrial biogeographic regions. Wallace's system was based on both birds and vertebrates, including non-flying mammals, which better reflect the natural divisions of the Earth due to their limited dispersal abilities.