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lecture 9/28, evoln., sp. relationships
lecture 9/28, evoln., sp. relationships

... 1. Variation in a population (ex: diff. Colors) 2. Variation is passed to offspring via genes 3. Variation is related to survival and reproduction ...
not evolutionary relationships
not evolutionary relationships

... intelligent. Humans and gorillas share ancestry: homology. Ravens are in a separate phylum (birds), so developed their intelligence separately from humans. ...
Evolution brain mapping review for test (aka “big ideas”) With your
Evolution brain mapping review for test (aka “big ideas”) With your

... using toothpicks. You may use each term/idea more than once. Simply make more than one sticky note. You may also simply add notes under a title on a stick note rather than making a separate note for each concept. You may want to add ExamplEs in this way… One more thing – you may add to this list as ...
Insects - OG Science Pages
Insects - OG Science Pages

... their blood moves freely inside their body ...
Silent Spring By Rachel Carson Chapters 16&17 in comparison to
Silent Spring By Rachel Carson Chapters 16&17 in comparison to

... supplement to DDT. This time good control was obtained for two years, but by August of 1950 chlordane-resistant flies appeared, and by the end of that year all of the houseflies as well as the Culex mosquitoes seemed to be resistant to chlordane. • As rapidly as new chemicals were brought into use, ...
Interspecies Relationships
Interspecies Relationships

... A Predator vs. prey relationship. Predator eats the prey. The prey is the food for the predator. http://www.youtube.com/watch?v=6hGuallLP ...
Natural Selection
Natural Selection

... each species of bird had adapted to utilize the food in its environment. • Darwin explained these changes with his theory of evolution by natural selection ...
Chapter 8 Test Study Guide
Chapter 8 Test Study Guide

... 13. The maximum population that the ecosystem can support indefinitely is known as _____________________________. 14. The interaction between a cheetah and gazelle is _______________________________. 15. A microscopic organism that lives in the gut of a cow helps break down grass and hay so the cow ...
POPULATIONS
POPULATIONS

... • Coevolution ...
5-1 and 5-2 - Kennedy APES
5-1 and 5-2 - Kennedy APES

... • Evolution in the predator population – improved abilities to capture prey • Evolutionary response – the prey improves its abilities to avoid capture • The evolution of improved escape abilities should result in increased capture abilities. ...
Mysteries Explored Part 11: Plants and Insects
Mysteries Explored Part 11: Plants and Insects

... pupating in lacy cocoons, which is very unusual for a beetle. Later that day, at the edge of a nearby forest, I discovered a beautiful, rectangular mesh cocoon belonging to a moth whose caterpillar feeds only on aspen. There is a larger significance to all this specificity. Each kind of plant has a ...
Interactions Among living Things
Interactions Among living Things

... • Every organism has a variety of adaptations that are suited to its specific living conditions • Niche- role of an organism in its habitat or how it makes its living – Type of food – How it gets food – How other organism use it as food – How it reproduces ...
speciation
speciation

... they've evolved similar adaptations because they occupy similar niches -dining on ants, hunting in the high grass, or swimming in the dark – although their evolutionary origins are quite different. ...
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Types of Natural Selection

... different areas? Environmental pressures may cause populations to change over time due to their environment but not enough to form a new species. This is because an organism’s ability to survive in its current environment to adulthood and reproduce will be the one to pass on its genes. And their gen ...
inter-specific-relationships-information (1)
inter-specific-relationships-information (1)

... In this interaction, neither species involved apparently gains any benefit and neither is harmed. So for instance in a grassland, you may find frogs and deer and rabbits all feeding together in the same place but in no way interacting with each other. This then is the most common of interactions but ...
Species - a group of individuals that is able to breed with each other
Species - a group of individuals that is able to breed with each other

... Normally, host & parasite and prey & predator have co-evolved … • host/prey has some measure of defense against the parasite/predator • parasite/predator not as virulent and lethal so as to either not kill off the host or to not so drastically reduce the numbers of prey that they disappear altogethe ...
Evolution Evidence and Theory
Evolution Evidence and Theory

... offspring than organisms with fewer beneficial traits. Darwin called the different degrees of successful reproduction among organisms in a population NATURAL SELECTION ...
Presentation - Specie Interactions
Presentation - Specie Interactions

... You will be designing a predator and prey that are competing for survival. Consider the adaptations of predators and prey and what each will need in order to capture or evade the other. ...
Evolution Test
Evolution Test

... a. It provides protection from malaria b. It improves fertility and leads to biological fitness. c. There is no selective preference by nature to eliminate this allele. d. It is the dominant allele. 20. When a farmer breeds only his or her best livestock, the process involved is: a. Natural selectio ...
Lecture 32
Lecture 32

... The pressures on exploiters that enhance their ability to capture prey The pressures on species to successfully weather disturbances whether that “disturbance” is fire, drought or etc. ...
Parasitoids (insects whose larvae are the actual “predator”)
Parasitoids (insects whose larvae are the actual “predator”)

... The pressures on species to successfully weather disturbances whether that “disturbance” is fire, drought or etc. ...
Major Trends in Evolution
Major Trends in Evolution

... • Large scale evolutionary changes that separate genera, families, orders, classes and even phyla of organisms • Macro = Large ...
Nature Journal - Custom
Nature Journal - Custom

... white fur on their chest as well as beneath their neck. The tail is usually fluffy and white at the tip. The ears are black and pointed. Their legs are colored black. The animal is about three feet long and weighs 10 pounds. As suggested by Clapham (122), Red fox inhabits a greater part of the Unite ...
Eumetazoa
Eumetazoa

... • Bacteria are important decomposers and recyclers of organic and inorganic wastes • Cyanobacteria may be important for photosynthesis, but blooms may also be an indication of poor ecosystem health. ...
Aurore Escrihuela - Four Seasons Press
Aurore Escrihuela - Four Seasons Press

... disappear under the influence of cold and frost, on the Mediterranean coast, it rains and this rain brings life back to the grasslands burnt by the summer sun, restores the green foliage of the holm oaks and olive trees, and even revives some blooms normally considered to be spring flowers. ...
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Coevolution



In biology, coevolution is ""the change of a biological object triggered by the change of a related object"". In other words, when changes in at least two species' genetic compositions reciprocally affect each other’s evolution, coevolution has occurred.There is evidence for coevolution at the level of populations and species. Charles Darwin briefly described the concept of coevolution in On the Origin of Species (1859) and developed it in detail in Fertilisation of Orchids (1862). It is likely that viruses and their hosts coevolve in various scenarios.However, there is little evidence of coevolution driving large-scale changes in Earth's history, since abiotic factors such as mass extinction and expansion into ecospaces seem to guide the shifts in the abundance of major groups. One proposed specific example was the evolution of high-crowned teeth in grazers when grasslands spread through North America - long held up as an example of coevolution. We now know that these events happened independently.Coevolution can occur at many biological levels: it can be as microscopic as correlated mutations between amino acids in a protein or as macroscopic as covarying traits between different species in an environment. Each party in a coevolutionary relationship exerts selective pressures on the other, thereby affecting each other's evolution. Coevolution of different species includes the evolution of a host species and its parasites (host–parasite coevolution), and examples of mutualism evolving through time. Evolution in response to abiotic factors, such as climate change, is not biological coevolution (since climate is not alive and does not undergo biological evolution).The general conclusion is that coevolution may be responsible for much of the genetic diversity seen in normal populations including: blood-plasma polymorphism, protein polymorphism, histocompatibility systems, etc.The parasite/host relationship probably drove the prevalence of sexual reproduction over the more efficient asexual reproduction. It seems that when a parasite infects a host, sexual reproduction affords a better chance of developing resistance (through variation in the next generation), giving sexual reproduction viability for fitness not seen in the asexual reproduction, which produces another generation of the organism susceptible to infection by the same parasite.Coevolution is primarily a biological concept, but researchers have applied it by analogy to fields such as computer science, sociology / international political economy and astronomy.
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