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Chapter 52 - AP Biology
Chapter 52 - AP Biology

chapter 5 - Avon Community School Corporation
chapter 5 - Avon Community School Corporation

... – Destruction of habitat • Tropical rain forest contains more than half of all species on Earth • Clearing the tropical rain forest for agricultural crops or grazing land reduces habitat & species – Disruption of habitat • Fig. 11, Pg. 125 shows how the # of harbor seals & sea lions declined, settin ...
Ecosystems & Their Components
Ecosystems & Their Components

... Dynamic – change & vary over time Biodiversity is looked at to indicate health A complex, interactive system that includes: ◦ 1. Biotic components (living)  Exs: bacteria, fungi, plants, animals ◦ 2. Abiotic components (nonliving, physical or chemical)  Exs: water, oxygen, nitrogen, salinity, pH, ...
Evolution
Evolution

... Natural selection: 1)All organisms have a high reproductive rate but food supply and other environmental factors are limiting. This means offspring struggle to survive. 2)There is variation among offspring. Some are better adapted to the environment than others. 3) Those organisms with favourable v ...
Biology unit 3
Biology unit 3

... ◦ In the presence of unlimited resources and in the absence of disease and predation, what would probably happen to a bacterial population? ◦ Which of the following refers to when a population’s birthrate equals its death rate? ...
MCA Review Part II: Interdependence Among Living Systems
MCA Review Part II: Interdependence Among Living Systems

... suited to the niche, and the other species will be pushed into another niche or become extinct. a. What are two outcomes of competitive exclusion? Identify AND describe each one. 1. Niche Partitioning: when two species naturally divide different resources based on competitive advantages. 2. Evolutio ...
Conditions when hybridization might predispose
Conditions when hybridization might predispose

... of adaptive evolution. This mechanism is instantaneously effective. The generation of extreme or novel phenotypes, so-called transgressive segregation, can be considered a special case of this (Rieseberg et al., 1999; Stelkens & Seehausen, 2009). It may bring some genotypes in a hybrid population in ...
Ecology- background
Ecology- background

... III. The Importance of Biodiversity A. Most of the world’s food crops come from just a few species B. Wild species serve as reservoirs of desirable genetic traits that might be needed to ...
Unit 5 - OCCC.edu
Unit 5 - OCCC.edu

... Many factors that regulate population growth are ________________________________ There are two general questions about regulation of population growth What environmental factors stop a population from growing indefinitely? Why do some populations show radical fluctuations in size over time, while o ...
Carrying Capacity of Ecosystems
Carrying Capacity of Ecosystems

... Often competition results in the reduction or complete elimination of one species from the area due to competitive exclusion. ...
Types of Community Interactions
Types of Community Interactions

... Habitat vs. Niche Habitat- the place in which an organism lives out its life ...
Threats to Biodiversity:
Threats to Biodiversity:

POPULATION DYNAMICS
POPULATION DYNAMICS

... ● Carrying capacity was overshot and population dropped, then grew again, etc. ● Overall the growth pattern is S-shaped ...
AP BIOLOGY SUMMER ASSIGNMENT Copy notes from webpage
AP BIOLOGY SUMMER ASSIGNMENT Copy notes from webpage

... 28. Elephants are not the most dominant species in African grasslands, yet they influence community structure. The grasslands contain scattered woody plants, but they are kept in check by the uprooting activities of the elephants. Take away the elephants, and the grasslands convert to forests or to ...
92KB - NZQA
92KB - NZQA

... have led to a change in one amino acid in the genome, resulting in differing colouration / phenotype on the breast of the birds. Male birds are territorial, but when presented with a male of different colouration, no territorial response is shown, as the male does not recognise the bird with differe ...
13 Bio Evolution mark schedule 2013
13 Bio Evolution mark schedule 2013

... have led to a change in one amino acid in the genome, resulting in differing colouration / phenotype on the breast of the birds. Male birds are territorial, but when presented with a male of different colouration, no territorial response is shown, as the male does not recognise the bird with differe ...
163KB - NZQA
163KB - NZQA

... have led to a change in one amino acid in the genome, resulting in differing colouration / phenotype on the breast of the birds. Male birds are territorial, but when presented with a male of different colouration, no territorial response is shown, as the male does not recognise the bird with differe ...
Mechanisms of Growth Regulation
Mechanisms of Growth Regulation

... in isolation. They engage in interspecic competition: that is, they share the environment with other species, competing with them for the same resources. These factors are also important to understanding how a specic population will grow. Nature regulates population growth in a variety of ways. Th ...
Summary
Summary

... 5. Repeat until all interior branches are found Pro – fast and easy to implement on computer Con – considers only similarity, not evolutionary history (assumes molecular clock) Parsimony – based on character states (it considers the entire sequence, not just a summary statistic such as distance); Se ...
Ecology
Ecology

... Ecology is a science of relationships ...
Lecture 30
Lecture 30

... No fire-related effects have been observed in the fish populations or the angling experience in the six rivers that have been monitored regularly since 1988. ...
Science Vocab Power Point
Science Vocab Power Point

... An environment that provides the things a specific organism needs to live, grow, and reproduce ...
Lecture 8 - Community Interactions and Niche Diversity
Lecture 8 - Community Interactions and Niche Diversity

... c. More chemical defenses -Garlic mustard- mustard oils (glucosinolates). d. Other chemicals- Nicotine, morphine and caffeine are alkaloids found in plants. Peppermint oil and catnip contain terpenoids. These compounds not only taste bad, but also can reduce insect growth. D. Symbiosis - a term that ...
6.12 Class PPT Biodiversity lab day 2
6.12 Class PPT Biodiversity lab day 2

... Molecular evidence just refers to looking at the similarities and differences of different species based on the molecules (pigments, proteins, DNA) that make up each of the species. ...
File
File

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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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