Primate Aggression and Evolution
... economic, and ideologically inspired goals somewhat different from the goals (mates, food, shelter) natural selection had in mind. If this is true, we must face the fact that while the cross-species and evolutionary perspective may help us understand how aggression first emerged and its past biologi ...
... economic, and ideologically inspired goals somewhat different from the goals (mates, food, shelter) natural selection had in mind. If this is true, we must face the fact that while the cross-species and evolutionary perspective may help us understand how aggression first emerged and its past biologi ...
Breeding in Apomictic Species - public.iastate.edu
... reproductive behavior, especially if it reproduces by facultative apomixis. Cytological observations are more rapid than progeny testing for identifying the method of reproduction. New ovule-clearing techniques allow one to classify the reproductive behavior of a plant within 2 or 3 days after colle ...
... reproductive behavior, especially if it reproduces by facultative apomixis. Cytological observations are more rapid than progeny testing for identifying the method of reproduction. New ovule-clearing techniques allow one to classify the reproductive behavior of a plant within 2 or 3 days after colle ...
Evolutionary Response to Selection on Clutch Size in a Long‐Term
... One explanation found in the literature for the common absence of evolution in clutch size is that an environmental factor is correlated with both clutch size and fitness (Cooke et al. 1990). In particular, evolution of clutch size is suggested to be constrained by correlations with traits that are ...
... One explanation found in the literature for the common absence of evolution in clutch size is that an environmental factor is correlated with both clutch size and fitness (Cooke et al. 1990). In particular, evolution of clutch size is suggested to be constrained by correlations with traits that are ...
Darwin`s Conjecture - Thedivineconspiracy.org
... entities? Just as organisms compete for scarce resources, businesses, states, and other organizations do likewise. They adapt and change. Some fail; others prosper. Organizations learn and pass on information. Are these not broadly Darwinian processes? Several thinkers have suggested that social evo ...
... entities? Just as organisms compete for scarce resources, businesses, states, and other organizations do likewise. They adapt and change. Some fail; others prosper. Organizations learn and pass on information. Are these not broadly Darwinian processes? Several thinkers have suggested that social evo ...
Effects of Type of Coping Response, Setting, and Social Janet Sigal,
... One factor that may affect a victim’s positive adjustment and resolution of the aversive sexual harassment situation relates to observers’ perceptions of the victim’s chosen coping response. If the victim experiences social support for a selected coping style, and this support could be translated in ...
... One factor that may affect a victim’s positive adjustment and resolution of the aversive sexual harassment situation relates to observers’ perceptions of the victim’s chosen coping response. If the victim experiences social support for a selected coping style, and this support could be translated in ...
Darwin & Evolution by Natural Selection
... islands. Most of animals on the Galápagos live nowhere else in world, but they look like species living on South American mainland. ...
... islands. Most of animals on the Galápagos live nowhere else in world, but they look like species living on South American mainland. ...
Natural Selection
... can build on in Key Stage 4. At Key Stage 3, learners will have studied many of the fundamental aspects of natural selection. These include how individuals in a population are different and how living organisms show adaptations to their environment. They will also be aware that evolution is as a res ...
... can build on in Key Stage 4. At Key Stage 3, learners will have studied many of the fundamental aspects of natural selection. These include how individuals in a population are different and how living organisms show adaptations to their environment. They will also be aware that evolution is as a res ...
The evolution of trade‐offs: where are we?
... effect of interactions with other variables. However, the sum total of all interactions with other traits is taken into account by use of the entire genetic and phenotypic variance–covariance matrix to predict response to selection. Given these matrices it is possible to define precisely the circums ...
... effect of interactions with other variables. However, the sum total of all interactions with other traits is taken into account by use of the entire genetic and phenotypic variance–covariance matrix to predict response to selection. Given these matrices it is possible to define precisely the circums ...
Diagnosis of STD - WPRO IRIS
... Nurses and other health care workers are often required to help people overcome problems related to sexual matters. Maintenance of good health does not always protect people from sexual problems. Professionals may be faced with questions about family planning, fertility regulation methods and pregna ...
... Nurses and other health care workers are often required to help people overcome problems related to sexual matters. Maintenance of good health does not always protect people from sexual problems. Professionals may be faced with questions about family planning, fertility regulation methods and pregna ...
XVII WORLD CONGRESS OF SEXOLOGY MONTREAL 2005
... ‘If therapists are not prepared this might happen, they fall into all sorts of traps with it.’ ‘It’s dangerous not to talk about is because it may be very disturbing for the supervisee and may contaminate the work.’ ‘Probably it is at the root of a lot of abuse of clients by therapists.’ ...
... ‘If therapists are not prepared this might happen, they fall into all sorts of traps with it.’ ‘It’s dangerous not to talk about is because it may be very disturbing for the supervisee and may contaminate the work.’ ‘Probably it is at the root of a lot of abuse of clients by therapists.’ ...
FREE Sample Here
... More small-beaked birds dying than larger-beaked birds. The offspring produced in subsequent generations have a higher percentage of birds with large beaks. E) Larger birds eating less so smaller birds can survive. Answer: D Topic: Concept 22.2 Skill: Application/Analysis 25) Which of the following ...
... More small-beaked birds dying than larger-beaked birds. The offspring produced in subsequent generations have a higher percentage of birds with large beaks. E) Larger birds eating less so smaller birds can survive. Answer: D Topic: Concept 22.2 Skill: Application/Analysis 25) Which of the following ...
Running head: LEVELS OF REASONING ABOUT NATURAL
... The field of biology has several instances of complex systems and has been a particularly prolific domain for research related to complex systems (Kauffman, 1995; Langton, 1994). The brain, predator-prey relationships, the behavior of ants and bees are all instances of complex systems that consist o ...
... The field of biology has several instances of complex systems and has been a particularly prolific domain for research related to complex systems (Kauffman, 1995; Langton, 1994). The brain, predator-prey relationships, the behavior of ants and bees are all instances of complex systems that consist o ...
Sexual Attraction to Clients: The Human Therapist and
... literature, Tower (1956) noted that virtually every writer on the subject of countertransference stated unequivocally that no form of erotic reaction to a patient is to be tolerated. Within the psychoanalytic framework, a therapist’s attraction to a client was originally seen as a reaction to the cl ...
... literature, Tower (1956) noted that virtually every writer on the subject of countertransference stated unequivocally that no form of erotic reaction to a patient is to be tolerated. Within the psychoanalytic framework, a therapist’s attraction to a client was originally seen as a reaction to the cl ...
Evolution
... – Variation: organisms vary in many characteristics – Inheritance: these variations can be inherited Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings ...
... – Variation: organisms vary in many characteristics – Inheritance: these variations can be inherited Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings ...
it`s all about sex: bioluminescent courtship displays, morphological
... genus) and tooth, which emerge from the cleft of the inner lobe, and perhaps 3) limb length (Cohen and Morin, 2010). Sexual dimorphism is obvious in the valves, eye size, first antennae, and eighth limbs, but is also present in the second antennae, fifth and seventh limbs, and probably in the upper ...
... genus) and tooth, which emerge from the cleft of the inner lobe, and perhaps 3) limb length (Cohen and Morin, 2010). Sexual dimorphism is obvious in the valves, eye size, first antennae, and eighth limbs, but is also present in the second antennae, fifth and seventh limbs, and probably in the upper ...
Charles Darwin`s Origin of Species, directional selection, and the
... formed the core of his Origin of Species, dealt with the mechanism of evolutionary change as well as the adaptation of organisms to their local environment. On several pages of his book, Darwin (1859) described natural selection as “the preservation of favourable variations and the rejection of inju ...
... formed the core of his Origin of Species, dealt with the mechanism of evolutionary change as well as the adaptation of organisms to their local environment. On several pages of his book, Darwin (1859) described natural selection as “the preservation of favourable variations and the rejection of inju ...
FREE Sample Here
... C) Organisms change by random chance. D) Heritable traits that promote reproduction become more frequent in a population from one generation to the next. Answer: D Topic: 13.13 Skill: Knowledge/Comprehension Learning Outcome: 13.10 36) Which of the following will tend to produce adaptive changes in ...
... C) Organisms change by random chance. D) Heritable traits that promote reproduction become more frequent in a population from one generation to the next. Answer: D Topic: 13.13 Skill: Knowledge/Comprehension Learning Outcome: 13.10 36) Which of the following will tend to produce adaptive changes in ...
Plant sex chromosome evolution
... likely to invade partially selfing co-sexual populations than are male-sterility mutations. However, they can be advantageous in gynodioecious populations, where the presence of females favours increased pollen output, even if it is accompanied by reduced female fertility. Overall, therefore, a cose ...
... likely to invade partially selfing co-sexual populations than are male-sterility mutations. However, they can be advantageous in gynodioecious populations, where the presence of females favours increased pollen output, even if it is accompanied by reduced female fertility. Overall, therefore, a cose ...
Chapter 13: How Populations Evolve
... • Darwin concluded that individuals best suited for a particular environment are more likely to survive and reproduce than those less well adapted • Darwin saw natural selection as the basic mechanism of evolution – As a result, the proportion of individuals with favorable characteristics increases ...
... • Darwin concluded that individuals best suited for a particular environment are more likely to survive and reproduce than those less well adapted • Darwin saw natural selection as the basic mechanism of evolution – As a result, the proportion of individuals with favorable characteristics increases ...
Plantas com efeito na impotência
... Resumo: The erect penis has always been a symbol of power, virility, and fertility. Inability to obtain or maintain an erection, known clinically as erectile dysfunction, is a major health problem. It can cause considerable distress, unhappiness, and relationship problems. The search has therefore c ...
... Resumo: The erect penis has always been a symbol of power, virility, and fertility. Inability to obtain or maintain an erection, known clinically as erectile dysfunction, is a major health problem. It can cause considerable distress, unhappiness, and relationship problems. The search has therefore c ...
Adaptation and Evolutionary Theory
... empty from our point of view when 'significant' longer scientifically acceptable. But there is one is added. What sort of variation is significant?That present day alternative we should consider. which can lead to adaptive evolutionary changes. It is not surprising that in finite populations Though ...
... empty from our point of view when 'significant' longer scientifically acceptable. But there is one is added. What sort of variation is significant?That present day alternative we should consider. which can lead to adaptive evolutionary changes. It is not surprising that in finite populations Though ...
PowerPoint used by Dr. Garland in the video
... (e.g., home range size). Evolutionary causes: Why has this diversity evolved? Natural selection: what is the benefit? ...
... (e.g., home range size). Evolutionary causes: Why has this diversity evolved? Natural selection: what is the benefit? ...
Asexual but not clonal: evolutionary processes in
... zygote. With this mechanism, offspring from heterozygous mothers will become homozygous for either allele in the absence of recombination, but may retain maternal heterozygosity when there is recombination between locus and centromere. Terminal fusion automixis has been reported for example in mayfl ...
... zygote. With this mechanism, offspring from heterozygous mothers will become homozygous for either allele in the absence of recombination, but may retain maternal heterozygosity when there is recombination between locus and centromere. Terminal fusion automixis has been reported for example in mayfl ...
This paper has been accepted for publication in Science
... However, Darwin scholars who have touched upon the concord of the theory of natural selection with the tradition of natural theology seem to differ in opinion on the extent to which Darwin appealed to the then prevailing modes of thought. Therefore, they explain this benefit of natural selection, w ...
... However, Darwin scholars who have touched upon the concord of the theory of natural selection with the tradition of natural theology seem to differ in opinion on the extent to which Darwin appealed to the then prevailing modes of thought. Therefore, they explain this benefit of natural selection, w ...
Colonies Are Individuals: Revisiting the Superorganism Revival
... identity in space, resisting dissolution and, as a general rule, any fusion with other colonies of the same or alien species. Wheeler, 1911 (310) ...
... identity in space, resisting dissolution and, as a general rule, any fusion with other colonies of the same or alien species. Wheeler, 1911 (310) ...
Sexual selection
Sexual selection is a mode of natural selection where typically members of one gender choose mates of the other gender to mate with, called intersexual selection, and where females normally do the choosing, and competition between members of the same gender to sexually reproduce with members of the opposite sex, called intrasexual selection. These two forms of selection mean that some individuals have better reproductive success than others within a population either from being sexier or preferring sexier partners to produce offspring. For instance in the breeding season sexual selection in frogs occurs with the males first gathering at the water's edge and croaking. The females then arrive and choose the males with the deepest croaks and best territories. Generalizing, males benefit from frequent mating and monopolizing access to a group of fertile females. Females have a limited number of offspring they can have and they maximize the return on the energy they invest in reproduction.First articulated by Charles Darwin who described it as driving speciation and that many organisms had evolved features whose function was deleterious to their individual survival, and then developed by Ronald Fisher in the early 20th century. Sexual selection can lead typically males to extreme efforts to demonstrate their fitness to be chosen by females, producing secondary sexual characteristics, such as ornate bird tails like the peacock plumage, or the antlers of deer, or the manes of lions, caused by a positive feedback mechanism known as a Fisherian runaway, where the passing on of the desire for a trait in one sex is as important as having the trait in the other sex in producing the runaway effect. Although the sexy son hypothesis indicates that females would prefer male sons, Fisher's principle explains why the sex ratio is 1:1 almost without exception. Sexual selection is also found in plants and fungi.The maintenance of sexual reproduction in a highly competitive world has long been one of the major mysteries of biology given that asexual reproduction can reproduce much more quickly as 50% of offspring are not males, unable to produce offspring themselves. However, research published in 2015 indicates that sexual selection can explain the persistence of sexual reproduction.