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Commentary
Commentary

... 196 Forum ...
Darwin`s Theory of Evolution Charles Darwin The Old World View
Darwin`s Theory of Evolution Charles Darwin The Old World View

... •  The  fossil  record   ...
COMMENTARY Clarifying the Foundations of Evolutionary Psychology: Bruce J. Ellis
COMMENTARY Clarifying the Foundations of Evolutionary Psychology: Bruce J. Ellis

... hypotheses and predictions. These middle-level evolutionary theories (e.g., parental investment theory, life history theory, good genes sexual selection theory, reciprocal altruism theory) are consistent with and guided by but are not directly derived from a set of more basic metatheoretical assumpt ...
Name - Valhalla High School
Name - Valhalla High School

... 3. Use the diagram to label the generations: P, F1, F2, pure, hybrid, and make notes of Mendel’s observations. ...
CHAPTER 4 ORGANIZATION OF LIFE 4.1 Ecosystems: Everything
CHAPTER 4 ORGANIZATION OF LIFE 4.1 Ecosystems: Everything

... ___________________________________ are flowering plants that produce seeds within fruit. Most land plants are angiosperms. The flower is the reproductive structure of the plant. Some angiosperms, like grasses, have small flowers, that ___________________________________their pollen. Other angiosper ...
here
here

... • Allopolyploid: formed from more than one species Diploids AA and BB Polyploid AABB Slide from Chris Pires ...
LambSheep - UCSB Economics - University of California, Santa
LambSheep - UCSB Economics - University of California, Santa

... • Genetic-based conflict of interest— Hamilton’s rule implies: In sexually reproducing species, individuals care half as much about their siblings as about themselves. Parents care equally about each of their children. Parents quarrel with their children about “Don’t be so selfish.” ...
Survival of the Fakest
Survival of the Fakest

... This theory does have the virtue of making a prediction: If all living things are gradually modified descendants of one or a few original forms, then the history of life should resemble a branching tree. Unfortunately, despite official pronouncements, this prediction has in some important respects t ...
DNA mutations 11.3 notes
DNA mutations 11.3 notes

... than before ...
Exam 3 Practice Exam - Iowa State University
Exam 3 Practice Exam - Iowa State University

... distribution of offspring is as follows: 737 offspring with a long tail and black hair, 345 offspring with a long tail and brown hair, 124 offspring with a short tail and black hair, and 872 offspring with a short tail and brown hair. Based on these offspring, what is the approximate recombination f ...
CH 14 notes - cloudfront.net
CH 14 notes - cloudfront.net

... evolution: Δ over time  process by which modern organisms have descended from others theory: well-supported, testable explanation for natural phenomena 15-3: Darwin presents his case (p.378) *On the Origin of Species published in 1859  Darwin observed variation in nature & on farms o genetic (inhe ...
122 [Study Guide] 23-3 How Evolution Occurs
122 [Study Guide] 23-3 How Evolution Occurs

... Every time a female chooses a mate based on appearance or behavior, she perpetuates the alleles that caused her to make that choice. She also enables a male with that particular phenotype to perpetuate his alleles. ...
The Origin of Species - Zamora`s Science Zone
The Origin of Species - Zamora`s Science Zone

... Fusion: Weakening Reproductive Barriers • If hybrids are as fit as parents, there can be substantial gene flow between species • If gene flow is great enough, the parent species can fuse into a single species • For example, researchers think that pollution in Lake Victoria has reduced the ability o ...
Speciation - eduBuzz.org
Speciation - eduBuzz.org

Chap. 20 Evolution Video Notes Outline
Chap. 20 Evolution Video Notes Outline

... Are the genes (traits) that remain after genetic drift more fit than the ones that were lost? Why or why not? ___________________________________________________________________________________________________________________ _________________________________________________________________________ ...
Population Evolution
Population Evolution

... individuals colonize a new area. Gene pools of these populations are very different from those of a larger populations so therefore you will see an increased percentage of individuals with the allele. Genetic Drift can cause several problems for populations. Loss of genetic variation so they cannot ...
RP 2L2 Organisms - Parents and Offspring
RP 2L2 Organisms - Parents and Offspring

... Variation among individuals of the same species can be explained by both genetic and environmental factors. Individuals within a species have similar but not identical genes. In sexual reproduction, variations in traits between parent and offspring arise from the particular set of chromosomes (and t ...
part 1: towards a new theory of behavioural
part 1: towards a new theory of behavioural

... the term implies. It actually requires two quite distinct processes to achieve evolution. The first step is producing what Darwin called ‘favourable individual differences and variations’ but which we now know to be inheritable mutations. The second step in the natural selection process has often be ...
acta 20 - Pontifical Academy of Sciences
acta 20 - Pontifical Academy of Sciences

... formed by four letters. Human DNA is like a library made of 23 volumes (the 23 chromosomes). In sexual reproduction of ‘diploid’ individuals like us and the great majority of plants and animals, each individual receives one copy of each chromosome type from the father, and one from the mother, so th ...
Chapter 3 - TeacherWeb
Chapter 3 - TeacherWeb

... Using the table below that describes the traits carried on Chromosome #6, which trait can the animal inherit only from its mother? The instructions that determine coat color are stored in the A. cytoplasm of skin cells. B. membrane of every cell. C. mitochondria of hair cells D. chromosomes of every ...
(a) Explain the principles which biologists use to classify organisms
(a) Explain the principles which biologists use to classify organisms

... In the late 18th century, the population of northern elephant seals was estimated to be about 150 000. These seals lived in different colonies in different places. The seals were then hunted. By 1910, the total population had fallen to under 100. All these seals lived in a single colony on one islan ...
Mutations-Notes guide
Mutations-Notes guide

... Name: _______________________________ Date: __________________ Hour:______ Mutations Notes (p. 239-240) 1. What are Mutations? ...
Mutations Reading Guide
Mutations Reading Guide

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EVOLUTION Very Helpful but not required Evolution Info http://nhptv
EVOLUTION Very Helpful but not required Evolution Info http://nhptv

... happened since we split off from a common ancestor, because not enough time has passed. Humans and yeast, though, which are extraordinarily different creatures (yeast isn't even an animal) have over 50 differences between their cytochrome c amino acid sequences. All species of organisms show this pa ...
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Koinophilia



Koinophilia is an evolutionary hypothesis concerning sexual selection which proposes that animals seeking mate preferentially choose individuals with a minimum of unusual features. Koinophilia intends to explain the clustering of organisms into species and other issues described by Darwin's Dilemma. The term derives from the Greek, koinos, ""the usual"", and philos, ""fondness"".Natural selection causes beneficial inherited features to become more common and eventually replace their disadvantageous counterparts. A sexually-reproducing animal would be expected to avoid individuals with unusual features, and to prefer to mate with individuals displaying a predominance of common or average features. This means that mates displaying mutant features are also avoided. This is advantageous because most mutations that manifest themselves as changes in appearance, functionality or behavior, are disadvantageous. Because it is impossible to judge whether a new mutation is beneficial or not, koinophilic animals avoid them all, at the cost of avoiding the occasional beneficial mutation. Thus, koinophilia, although not infallible in its ability to distinguish fit from unfit mates, is a good strategy when choosing a mate. A koinophilic choice ensures that offspring are likely to inherit features that have been successful in the past.Koinophilia differs from assortative mating, where ""like prefers like"". If like preferred like, leucistic animals (such as white peacocks) would be sexually attracted to one another, and a leucistic subspecies would come into being. Koinophilia predicts that this is unlikely because leucistic animals are attracted to the average in the same way as other animals. Since non-leucistic animals are not attracted by leucism, few leucistic individuals find mates, and leucistic lineages will rarely form.Koinophilia provides simple explanations for the rarity of speciation (in particular Darwin's Dilemma), evolutionary stasis, punctuated equilibria, and the evolution of cooperation. Koinophilia might also contribute to the maintenance of sexual reproduction, preventing its reversion to the much simpler and inherently more advantageous asexual form of reproduction.The koinophilia hypothesis is supported by research into the physical attractiveness of human faces by Judith Langlois and her co-workers. They found that the average of two human faces was more attractive than either of the faces from which that average was derived. The more faces (of the same gender and age) that were used in the averaging process the more attractive and appealing the average face became. This work into averageness supports koinophilia as an explanation of what constitutes a beautiful face, and how the individuality of a face is recognized.
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