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Sexual violence victimization and condom use in relation to
... female drug users who exchanged sex for drugs or money were more likely to be victims of coerced sex. One plausible hypothesis for the association of being a victim of sexual abuse and HIV risk behavior is that a history of sexual abuse is associated with subsequent physical and emotional pain which ...
... female drug users who exchanged sex for drugs or money were more likely to be victims of coerced sex. One plausible hypothesis for the association of being a victim of sexual abuse and HIV risk behavior is that a history of sexual abuse is associated with subsequent physical and emotional pain which ...
Sexual Selection and Mate Choice
... variance in male reproductive success (RS) exceeded variance in female RS, and male, but usually not female, RS increased with the number of mates. He argued that sexual selection should be stronger on males than on females. Trivers (1972) expanded this framework by arguing that when one sex invests ...
... variance in male reproductive success (RS) exceeded variance in female RS, and male, but usually not female, RS increased with the number of mates. He argued that sexual selection should be stronger on males than on females. Trivers (1972) expanded this framework by arguing that when one sex invests ...
Children and Sexual Abuse
... explore each other's bodies, visually and tactually, (e.g. playing doctor) as well as explore gender roles and behaviors (e.g. playing house). Children involved in normal sex play are of similar age, size and developmental status and participate on a voluntary basis. While siblings engage in mutual ...
... explore each other's bodies, visually and tactually, (e.g. playing doctor) as well as explore gender roles and behaviors (e.g. playing house). Children involved in normal sex play are of similar age, size and developmental status and participate on a voluntary basis. While siblings engage in mutual ...
Trait selection in flowering plants: how does sexual selection
... for those who study organisms with external fertilization; for example, Levitan (1998), in a paper on aquatic animals with external fertilization, noted that Arnold’s definition does not include selection that arises from differences in fertilization efficiency. In essence, the problem is similar fo ...
... for those who study organisms with external fertilization; for example, Levitan (1998), in a paper on aquatic animals with external fertilization, noted that Arnold’s definition does not include selection that arises from differences in fertilization efficiency. In essence, the problem is similar fo ...
Section 3 - Studying Life
... ism needs as it grows and develops. Just as a building grows taller because workers use energy to assemble new materials, an organism uses energy and a constant supply of materials to grow, develop, and reproduce. Organisms also need materials and energy just to stay alive. The combination of chemic ...
... ism needs as it grows and develops. Just as a building grows taller because workers use energy to assemble new materials, an organism uses energy and a constant supply of materials to grow, develop, and reproduce. Organisms also need materials and energy just to stay alive. The combination of chemic ...
Evolution Practice Test - Miami Beach Senior High
... 1. gametes with many copies of the same chromosome 3. zygotes with the genetic information to produce only females 2. embryos with traits identical to those of all other 4. offspring with some traits that did not appear in their members of the species parents 18. Which situation would most likely pr ...
... 1. gametes with many copies of the same chromosome 3. zygotes with the genetic information to produce only females 2. embryos with traits identical to those of all other 4. offspring with some traits that did not appear in their members of the species parents 18. Which situation would most likely pr ...
Early Sexualisation and the Impact of the Media
... expectations, reality and sexual behaviour from the media, advertising and actual pornography, which needs to be counter balanced. • It is essential to have an organisation policy in place to cover both responding to child protection/safeguarding issues involving incidence with young people where po ...
... expectations, reality and sexual behaviour from the media, advertising and actual pornography, which needs to be counter balanced. • It is essential to have an organisation policy in place to cover both responding to child protection/safeguarding issues involving incidence with young people where po ...
Phylum Platyhelminthes (Flatworms)
... How is the reproductive system of most platyhelminths? Most are hermaphroditic but normally cross-fertilise. How does the complexity of the reproductive system vary? 1) Acoel turbellarians lack specific gonads & oviducts, the spermatogonia & oogonia lying free in the mesenchyme. 2) Other turbell ...
... How is the reproductive system of most platyhelminths? Most are hermaphroditic but normally cross-fertilise. How does the complexity of the reproductive system vary? 1) Acoel turbellarians lack specific gonads & oviducts, the spermatogonia & oogonia lying free in the mesenchyme. 2) Other turbell ...
Sexual Disorders
... Individual is at least 16 years old & is at least 5 years older than the child Sexual interest in prepubescent children exceeds interest in physically mature adults Specifiers: if sexually attracted to males, females, or both if limited to incest (intrafamilial vs. extrafamilial) if exclusive (attra ...
... Individual is at least 16 years old & is at least 5 years older than the child Sexual interest in prepubescent children exceeds interest in physically mature adults Specifiers: if sexually attracted to males, females, or both if limited to incest (intrafamilial vs. extrafamilial) if exclusive (attra ...
Sex and gender - The Cambridge Social Ontology Group
... rejects all ideas of human nature, since lest they be used as ‘the basis for causal, deterministic (as opposed to interpretative) explanations of human behaviour or culture’ (Flax, 2002: 1042). No distinction is made between causation, where the causal powers of A, when exercised, result in a tenden ...
... rejects all ideas of human nature, since lest they be used as ‘the basis for causal, deterministic (as opposed to interpretative) explanations of human behaviour or culture’ (Flax, 2002: 1042). No distinction is made between causation, where the causal powers of A, when exercised, result in a tenden ...
sex and gender: a critical realist approach
... rejects all ideas of human nature, since lest they be used as ‘the basis for causal, deterministic (as opposed to interpretative) explanations of human behaviour or culture’ (Flax, 2002: 1042). No distinction is made between causation, where the causal powers of A, when exercised, result in a tenden ...
... rejects all ideas of human nature, since lest they be used as ‘the basis for causal, deterministic (as opposed to interpretative) explanations of human behaviour or culture’ (Flax, 2002: 1042). No distinction is made between causation, where the causal powers of A, when exercised, result in a tenden ...
Cat Behavior and Training - Cat Neutering and Behavior
... Millions of cats are destroyed across North America each year because there are far more cats born than homes available. A single male cat can father many litters so that neutering of intact males is essential for population control. Although sexual desire will be greatly reduced by castration, some ...
... Millions of cats are destroyed across North America each year because there are far more cats born than homes available. A single male cat can father many litters so that neutering of intact males is essential for population control. Although sexual desire will be greatly reduced by castration, some ...
I. Review of Genetics
... into one cell, which grows into fruiting body. Fruiting body (such as mushrooms) release spores. ...
... into one cell, which grows into fruiting body. Fruiting body (such as mushrooms) release spores. ...
Organ Systems - Cloudfront.net
... - used to release energy from nutrients • Heat - form of energy - partly controls rate of metabolic reactions • Pressure - application of force on an object - atmospheric pressure – important for breathing - hydrostatic pressure – keeps blood flowing ...
... - used to release energy from nutrients • Heat - form of energy - partly controls rate of metabolic reactions • Pressure - application of force on an object - atmospheric pressure – important for breathing - hydrostatic pressure – keeps blood flowing ...
Thinking FaiThFully abouT Sex and Marriage
... is unflinching in his call that husband and wife meet each other’s sexual needs/rights mutually and non-coercively. These are fairly strong insights from a writer often accused of being anti-sex! Paul understands that sexual union is unitive at a deeper level; that in sexual intercourse the two beco ...
... is unflinching in his call that husband and wife meet each other’s sexual needs/rights mutually and non-coercively. These are fairly strong insights from a writer often accused of being anti-sex! Paul understands that sexual union is unitive at a deeper level; that in sexual intercourse the two beco ...
The ecology of sexual conflict: ecologically dependent parallel
... also drive trait evolution on its own, and if ecological selection is sufficiently strong, the traits underlying sexual conflict may evolve not by sexually antagonistic coevolution, or at least not by such coevolution alone. As a consequence of such effects, there is an implicit prediction of ecolog ...
... also drive trait evolution on its own, and if ecological selection is sufficiently strong, the traits underlying sexual conflict may evolve not by sexually antagonistic coevolution, or at least not by such coevolution alone. As a consequence of such effects, there is an implicit prediction of ecolog ...
Other Disorders
... Disturbance in experiencing one’s body wt or shape undue influence of body wt or shape on self-evaluation persistent not recognizing the seriousness of current low body wt ...
... Disturbance in experiencing one’s body wt or shape undue influence of body wt or shape on self-evaluation persistent not recognizing the seriousness of current low body wt ...
Sex Differences in Susceptibility to Infection
... An ultimate explanation, on the other hand, would seek the benefit that birds confining their singing to such a period would obtain. Presumably, more insects are available in the spring and summer, when the chicks require feeding by their ...
... An ultimate explanation, on the other hand, would seek the benefit that birds confining their singing to such a period would obtain. Presumably, more insects are available in the spring and summer, when the chicks require feeding by their ...
Name: Date: Aim 38: What occurs during the female menstrual cycle
... ___________________ (shed), and pass out of the birth canal with the ______________________ egg (female’s period) ...
... ___________________ (shed), and pass out of the birth canal with the ______________________ egg (female’s period) ...
Female Sexual Dysfunction
... • such side effects were not noted unless directly asked by physicians and most common side effects were delayed orgasm and decreased libido. ...
... • such side effects were not noted unless directly asked by physicians and most common side effects were delayed orgasm and decreased libido. ...
iv) What kind of variation is shown by Tay-Sachs
... a) i) Calculate the average annual increase in yield in the 40 year period from 1930 to 2000. ii) Which ten year period showed the greatest increase in yield? b) Each individual plant in the field gives a different yield which can be any value between the lowest and the highest. What type of variati ...
... a) i) Calculate the average annual increase in yield in the 40 year period from 1930 to 2000. ii) Which ten year period showed the greatest increase in yield? b) Each individual plant in the field gives a different yield which can be any value between the lowest and the highest. What type of variati ...
Genetics
... copy of the gene from the father and one from the mother. For the coin toss activity, results for an individual "family of 4 children" often deviates substantially from the results predicted by the Punnett square (see next section on statistical information). Results for larger samples generally are ...
... copy of the gene from the father and one from the mother. For the coin toss activity, results for an individual "family of 4 children" often deviates substantially from the results predicted by the Punnett square (see next section on statistical information). Results for larger samples generally are ...
Acc_Bio_Sem2_FERP_Part2
... stigma – top, sticky portion of the pistil that receives the pollen style – long tube of the pistil that leads to the ovary ovary – where fertilization occurs (becomes the fruit) pistil – female reproductive structure (stigma, style, ovary) anther – produces pollen filament – supports the anther pet ...
... stigma – top, sticky portion of the pistil that receives the pollen style – long tube of the pistil that leads to the ovary ovary – where fertilization occurs (becomes the fruit) pistil – female reproductive structure (stigma, style, ovary) anther – produces pollen filament – supports the anther pet ...
Characteristics and Classification of Living Organisms (Extended)
... (c) Mitochondria are cell structures that contain a small quantity of DNA. Scientists are sequencing the DNA of one particular gene in mitochondria to help identify different species of many animals including myriapods. The sequences that they find are called ‘barcodes’. (i) ...
... (c) Mitochondria are cell structures that contain a small quantity of DNA. Scientists are sequencing the DNA of one particular gene in mitochondria to help identify different species of many animals including myriapods. The sequences that they find are called ‘barcodes’. (i) ...
Sexual reproduction
Sexual reproduction is a form of reproduction where two morphologically distinct types of specialized reproductive cells called gametes fuse together, involving a female's large ovum (or egg) and a male's smaller sperm. Each gamete contains half the number of chromosomes of normal cells. They are created by a specialized type of cell division, which only occurs in eukaryotic cells, known as meiosis. The two gametes fuse during fertilization to produce DNA replication and the creation of a single-celled zygote which includes genetic material from both gametes. In a process called genetic recombination, genetic material (DNA) joins up so that homologous chromosome sequences are aligned with each other, and this is followed by exchange of genetic information. Two rounds of cell division then produce four daughter cells with half the number of chromosomes from each original parent cell, and the same number of chromosomes as both parents, though self-fertilization can occur. For instance, in human reproduction each human cell contains 46 chromosomes, 23 pairs, except gamete cells, which only contain 23 chromosomes, so the child will have 23 chromosomes from each parent genetically recombined into 23 pairs. Cell division initiates the development of a new individual organism in multicellular organisms, including animals and plants, for the vast majority of whom this is the primary method of reproduction. A species is defined as a taxonomic rank. A species is often defined as the largest group of organisms where two hybrids are capable of reproducing fertile offspring, typically using sexual reproduction, although the species problem encompasses a series of difficult related questions that often come up when biologists define the word species. The evolution of sexual reproduction is a major puzzle because asexual reproduction should be able to outcompete it as every young organism created can bear its own young. This implies that an asexual population has an intrinsic capacity to grow more rapidly with each generation. This 50% cost is a fitness disadvantage of sexual reproduction. The two-fold cost of sex includes this cost and the fact that any organism can only pass on 50% of its own genes to its offspring. One definite advantage of sexual reproduction is that it prevents the accumulation of genetic mutations.Sexual selection is a mode of natural selection in which some individuals out-reproduce others of a population because they are better at securing mates for sexual reproduction. It has been described as ""a powerful evolutionary force that does not exist in asexual populations""Prokaryotes reproduce through asexual reproduction but may display processes similar to sexual reproduction (mechanisms for lateral gene transfer such as bacterial conjugation, transformation and transduction), but they do not lead to reproduction. In prokaryotes, the initial cell has additional or transformed genetic material.