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... the scientific study of human populations 2. List some factors that might play a role in a population growth rate. Immigration, emigration, death rate 3. What are the four characteristics of a population? Geographic distribution, density, growth rate, and age structure 4. Which of those four charact ...
Populations: Variation in space and time
Populations: Variation in space and time

... variation in sex ratio at birth, number of deaths, number reproducing • Environmental stochasticity: decline in population numbers due to environmental disasters or more minor events ...
Polony - OpenWetWare
Polony - OpenWetWare

... • Institute of Protein Research of the Russian Academy of Sciences • References: • NAR(10)2349 from 1993 • AnalBiochem(334)376 • NAR(21)2349 ...
Biodiversity, Species Interactions, and Population Control
Biodiversity, Species Interactions, and Population Control

... SCIENCE FOCUS: Many human activities have had detrimental effects of sea otter populations. Their low reproductive rate has limited their ability to increase in numbers. C. Rapidly growing populations typically reproduce early in life, have many offspring, and reproduce many times with short interva ...
Training Handout - Science Olympiad
Training Handout - Science Olympiad

... • r-selected organisms - put most of their energy into rapid growth and reproduction. This is common of organisms that occupy unpredictable environments, e.g. weeds are usually annuals with rapid growth and early reproduction. They produce large number of seeds containing few stored nutrients • K-se ...
Intro to Ecology Flow of Energy Vocabulary Review
Intro to Ecology Flow of Energy Vocabulary Review

... Complete each sentence or statement. 18. The study of interactions among organisms and between organisms and their physical surroundings is called ____________________. 19. Autotrophs capture energy from sunlight or ____________________ to produce food. 20. Plant-eating animals such as cows are call ...
Chapter 42 – Population Ecology
Chapter 42 – Population Ecology

... Population – All the organisms within an area belonging to the same species Community – All the various populations interacting at a locale Ecosystem – Encompasses a community of populations interacting with the abiotic ...
USFWS Regional Bog Turtle Update
USFWS Regional Bog Turtle Update

AP Biology Summer Assignment Ecology Unit Chapter 52 1. Define
AP Biology Summer Assignment Ecology Unit Chapter 52 1. Define

... of earlier interspecific competition resolved by the evolution of niche differentiation; when competition between species with identical niches does not lead to local extinction or either species, it is generally because one species' niche becomes modified- evolution by natural selection can result ...
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natural selection
natural selection

... Sexual Selection ...
Ecology - World of Teaching
Ecology - World of Teaching

... area; can be primary or secondary.  Primary – begins in a place without soil  Secondary – where soil already exists ...
Ecosystem change and species persistence over time: a genome
Ecosystem change and species persistence over time: a genome

... abundance at a taxonomic depth that has not been possible until now due to methodological limitations. We expect to disentangle the effects of past human land-use (hunting, husbandry, burning, agriculture), climate change, and biota on species and ecosystem changes and thereby be able to answer ques ...
How to Be Manipulative
How to Be Manipulative

... by November we saw consistent differences across treatments in the diversity of understory plants. Other changes will take years. Trees, for example, are slow. We hope to run this experiment for 20 years, and it may take that long before we really understand what’s happening ...
facts about maple syrup urine disease (msud)
facts about maple syrup urine disease (msud)

... Test results indicate that you are a carrier of maple syrup urine disease (MSUD). Carriers typically show no symptoms of MSUD; however, carriers are at an increased risk of having a child with MSUD. Risk for the current or future pregnancies is dependent on your partner’s carrier status. Carrier tes ...
Tax and Evol 6 Speciation
Tax and Evol 6 Speciation

... If a population of swans flies north 2 weeks early then mating with the main group of swans is no longer possible. ...
ecological niche
ecological niche

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... plant over a different host plant. If “preference for host plant” is a heritable trait, then selection can drive these two groups of insects toward separate host plant use (divergent selection). If mechanisms of reproductive isolation arise, then sympatric speciation can occur. However, if the herit ...
Living things and the environment
Living things and the environment

... • Niche – A specific role of an organism in its habitat. • Included in a niche: • What type of food the organism eats • How it obtains this food • What other organisms eat it • How and when the organism reproduces • The physical conditions it requires to survive • Every organism has a variety of ada ...
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... Transcribe and Translate the sequences and answer the above questions using the sequence of amino acids. From your investigation evaluate the effectiveness of using biochemical variations to deduce phylogenies Evaluate how effective these different sequences would be as a molecular or evolutionary c ...
Ecology 2
Ecology 2

Molecular genetic testing
Molecular genetic testing

... 3. Presence of structural chromosome abnormality in one of the parents. 4. Family history of a genetic disorder that may be diagnosed or ruled out by biochemical or DNA analysis. 5. Family history of an X-linked disorder for which there is no specific prenatal diagnostic test. 6. Risk of a neural tu ...
B 262, F 2008
B 262, F 2008

... explored the association of the VDR FokI gene (a gene for proteins involved in vitamin D metabolism) alleles with likelihood of development of prostate cancer in male physicians in the United States aged 40 and older. The subjects were followed for 25 years to determine if they developed prostate ca ...
Science Notes: September 8, 2011 COMPETITON Competition may
Science Notes: September 8, 2011 COMPETITON Competition may

... In any ecosystem the availability of food, water, living space, mates, places to live and other resources are limited. A limiting factor is anything that restricts the number of individuals in a population. Limiting factors include living and non-living features of the ecosystem. The same limiting f ...
here - Lycoming College
here - Lycoming College

... The Acadian Program of 2014 consisted of teams from Pennsylvania, Belize, Vietnam, Chile, and Argentina; each team brought their own experiences in dealing with regional conservation from their respected homelands. These teams delivered extensive presentations on their own conservation issues that c ...
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Molecular ecology

Molecular ecology is a field of evolutionary biology that is concerned with applying molecular population genetics, molecular phylogenetics, and more recently genomics to traditional ecological questions (e.g., species diagnosis, conservation and assessment of biodiversity, species-area relationships, and many questions in behavioral ecology). It is virtually synonymous with the field of ""Ecological Genetics"" as pioneered by Theodosius Dobzhansky, E. B. Ford, Godfrey M. Hewitt and others. These fields are united in their attempt to study genetic-based questions ""out in the field"" as opposed to the laboratory. Molecular ecology is related to the field of Conservation genetics.Methods frequently include using microsatellites to determine gene flow and hybridization between populations. The development of molecular ecology is also closely related to the use of DNA microarrays, which allows for the simultaneous analysis of the expression of thousands of different genes. Quantitative PCR may also be used to analyze gene expression as a result of changes in environmental conditions or different response by differently adapted individuals.
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