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Philosophy of biology

Eugenics - Traits Studied

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Biology
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Eugenics

Eugenics ? Traits Studied Charles Davenport was the director of three institutions based at Cold Spring Harbor ? the ERO, the Biological Laboratory, and the Carnegie Institute of Washington?s Station for Experimental Evolution He noted in his 1909 Annual Report that the inability to conduct controlled experiments ruled out human genetics as a suitable topic for the Station for Experimental Evolution He and his wife published 4 papers between 1907 and 1910 that applied Mendelian principles to the human inheritance of eye color, hair color, hair texture and pigmentation The paper on skin pigmentation made the first reference to polygenic inheritance ? a trait influenced by two or more genes The eye color paper relied on data supplied by ?school principals and other friends?

Chapter 24 The Origin of Species
Lecture Outline

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Biology
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Chapter 24 The Origin of Species Lecture Outline Overview: That ?Mystery of Mysteries? Darwin visited the Gal?pagos Islands and found them filled with plants and animals that lived nowhere else in the world. He realized that he was observing newly emerged species on these young islands. Speciation?the origin of new species?is at the focal point of evolutionary theory because the appearance of new species is the source of biological diversity. Microevolution is the study of adaptive change in a population. Macroevolution addresses evolutionary changes above the species level. It deals with questions such as the appearance of evolutionary novelties (e.g., feathers and flight in birds) that can be used to define higher taxa.

Heredity and Behavior: Is it all in the Genes?

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Psychology
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Heredity
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Heredity and Behavior: Is it All in the Genes? Emily Moler Biological makeup is Intimately related to your behavior. Every cell in your body contains enduring messages from your mother and father These are found on the chromosomes that lie within nucleus Chromosomes Strand of DNA that carry genetic information There are 46 in each cell (except for the sex cells) and are found in 23 pairs, each half of the pair comes from either your mom or dad. Fertilization This is when a parent will give their genes to their child. The parents create a zygote, which is a single cell formed by the union of a sperm and an egg. Genes DNA segments that serve as the key functional units in hereditary transmission. They are found on chromosomes. More on Chromosomes

Chapter 5

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Environmental Science
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Summary 1. Two major factors affect the number of species in a community: the latitude in terrestrial communities and pollution in aquatic systems. 2. Species play different roles in a community. Native species sustain the ecosystem in which they are a part. Some nonnative species will crowd out native species. Indicator species alert us to harmful changes in the community. Keystone species play ecological roles in the specific community: they may assist in pollination help regulate populations. Foundation species affect the community’s habitat to benefit other species. 3. Species interact with each other in these different ways: interspecific competition, predation, parasitism, mutualism, and commensalism.

Evolutionary Psychology

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Psychology
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evolutionary psychology

Evolutionary Psychology (sparknotes.com) Evolutionary psychology uses evolutionary theory to explain similarities in psychological characteristics. According to evolutionary psychologists, patterns of behavior have evolved through natural selection, in the same way that physical characteristics have evolved. Because of natural selection,adaptive behaviors, or behaviors that increase reproductive success, are kept and passed on from one generation to the next. Mating Behavior

Evolution and Ecology Notes

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Biology
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Ecology
evolution

? Tuesday, June 07, 2011 8:43 PM ? Lecture 1 ? Hierarchy Biosphere ? Ecosystem ? Communities ? Populations ? Organisms ? Organismal Ecology Sub-disciplines of physiological, evolutionary, and behavioral ecology Concerned with how organisms?s structure physiology and behavior meet challenges posed by environment. Population Ecology Population: group of individuals of same species living in area Analyzes factors that affect population size and how/why it changes through time Community Ecology Community: group of populations of different species in area Examines how interactions between species (predation/competition) affect community structure and organization Ecosystem Ecology Ecosystem: community of organisms in area and physical factors with which those organisms interact

Conservation of Energy Lab

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Physics
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Conservation of Energy Kevin D. Edgerton Objective: The objective of this experiment is to study the law of conservation of energy and see how the conservation of energy equation is used. . Data and Calculations: Part I: Bouncing Ball Mass of Ball 417.2g Ranger to floor distances 0.771m 0.778m 0.765m 0.769m 0.775m Average 0.7716m The Total Energy drops to near zero when the ball hits the ground. It does not violate the law of conservation of energy because the energy lost in the collision with the ground is not accounted for by the measurements of potential and kinetic energy. Because of this, the total energy decreases after each bounce. With a lighter ball there may be less energy lost during the collisions.

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