Taxonomy - Brief facts
... and the nematode, Caenorhabditis elegans, in terms of reduction of the nuclear genome, rapid evolution of the mitochondrial genome, the acquisition of determinate development and simplification of the body plan. The recent genome sequencing of Ciona intestinalis will allow a broad comparative analys ...
... and the nematode, Caenorhabditis elegans, in terms of reduction of the nuclear genome, rapid evolution of the mitochondrial genome, the acquisition of determinate development and simplification of the body plan. The recent genome sequencing of Ciona intestinalis will allow a broad comparative analys ...
Changing Conversations about Sexual Assault
... findings regarding the interaction of rape myth acceptance and passive voice, more research needs to be done on this topic (Bohner, 2001). As Jackson Katz discusses in his TEDx Talk, “Violence Against Women – it‟s a Men‟s Issue,” we often grammatically remove the agent when we speak about assault in ...
... findings regarding the interaction of rape myth acceptance and passive voice, more research needs to be done on this topic (Bohner, 2001). As Jackson Katz discusses in his TEDx Talk, “Violence Against Women – it‟s a Men‟s Issue,” we often grammatically remove the agent when we speak about assault in ...
Modelling the evolution and consequences of mate choice
... species we might be tempted to define it as the creation of offspring by combining gametes from a male and a female. We can recognise this process in many other invertebrates. However, in other species, things are not so straightforward (for a list of examples and references, see Hurst, 1995). Ander ...
... species we might be tempted to define it as the creation of offspring by combining gametes from a male and a female. We can recognise this process in many other invertebrates. However, in other species, things are not so straightforward (for a list of examples and references, see Hurst, 1995). Ander ...
197 THE ROLE OF Ca2+ IN SIGNAL TRANSDUCTION FOLLOWING
... part, the cascade of events responsible for initiating zygote development. [Ca2+]i has been reported to rise to levels of up to 10 mmol l21 from resting levels of 100–200nmol l21 (e.g. Brownlee and Dale, 1990; Mohri and Hamaguchi, 1991). Ca2+ wave propagation has been investigated in detail in sea u ...
... part, the cascade of events responsible for initiating zygote development. [Ca2+]i has been reported to rise to levels of up to 10 mmol l21 from resting levels of 100–200nmol l21 (e.g. Brownlee and Dale, 1990; Mohri and Hamaguchi, 1991). Ca2+ wave propagation has been investigated in detail in sea u ...
The Long-Term Habituation of Sexual Arousal in
... habituation effects are temporary and are retained for very short periods of time, whereas other habituation effects are thought to occur over a longer time. The longer term habituation effects are thought to occur when the following are observed: (a) short-term habituation; (b) spontaneous recovery ...
... habituation effects are temporary and are retained for very short periods of time, whereas other habituation effects are thought to occur over a longer time. The longer term habituation effects are thought to occur when the following are observed: (a) short-term habituation; (b) spontaneous recovery ...
1 Human sex differentiation and its abnormalities
... are also associated with true hermaphroditism. Although testicular development is common in 46,XY individuals, it is difficult to explain the presence of testicular tissue in 46,XX patients with true hermaphroditism. It has been suggested that these difficult-to-explain cases are related to an autos ...
... are also associated with true hermaphroditism. Although testicular development is common in 46,XY individuals, it is difficult to explain the presence of testicular tissue in 46,XX patients with true hermaphroditism. It has been suggested that these difficult-to-explain cases are related to an autos ...
fungi - Stjosephcs.org
... cyanobacterium or green alga. • The fungi hyphae provide protection and hold moisture while food is provided by the photosynthetic partner. ...
... cyanobacterium or green alga. • The fungi hyphae provide protection and hold moisture while food is provided by the photosynthetic partner. ...
FUNGI
... cyanobacterium or green alga. • The fungi hyphae provide protection and hold moisture while food is provided by the photosynthetic partner. ...
... cyanobacterium or green alga. • The fungi hyphae provide protection and hold moisture while food is provided by the photosynthetic partner. ...
Hebephilia Is Not a Mental Disorder in DSM-IV
... The Misuse of the Diagnosis Paraphilia NOS, Hebephilia Although it was first mentioned 100 years ago, hebephilia has sprung into sudden prominence only because of its recent use in forensic proceedings.6 The term hebephilia has been used to provide a mental disorder diagnosis for those SVP offenders ...
... The Misuse of the Diagnosis Paraphilia NOS, Hebephilia Although it was first mentioned 100 years ago, hebephilia has sprung into sudden prominence only because of its recent use in forensic proceedings.6 The term hebephilia has been used to provide a mental disorder diagnosis for those SVP offenders ...
Female Polymorphism, Frequency Dependence, and Rapid
... and that females that have mated only once lay just as many fertile eggs as females that have mated several times (Sirot and Brockmann 2001). These and several other features of Ischnura mating systems suggest that the observed mating rate in the field, where females are continuously exposed to male ...
... and that females that have mated only once lay just as many fertile eggs as females that have mated several times (Sirot and Brockmann 2001). These and several other features of Ischnura mating systems suggest that the observed mating rate in the field, where females are continuously exposed to male ...
NBER WORKING PAPER SERIES EFFECTIVENESS AND SPILLOVERS OF ONLINE SEX EDUCATION:
... information spillovers across cohorts of secondary school students in Kenya from an HIV information campaign. Fletcher (2007) and Richards-Shubick (2011) provide evidence that peer group norms have a first order effect in explaining sexual health outcomes. Our results show that not only do peer-grou ...
... information spillovers across cohorts of secondary school students in Kenya from an HIV information campaign. Fletcher (2007) and Richards-Shubick (2011) provide evidence that peer group norms have a first order effect in explaining sexual health outcomes. Our results show that not only do peer-grou ...
Sexual Dimorphism in Human Hip Bone
... The four main features of biological identity are sex, age, stature and ethnic background. A reliable estimation of sex from the skeleton by using various criteria is important while dealing with undocumented skeletal material. Skeletal characteristics vary among populations; therefore each populati ...
... The four main features of biological identity are sex, age, stature and ethnic background. A reliable estimation of sex from the skeleton by using various criteria is important while dealing with undocumented skeletal material. Skeletal characteristics vary among populations; therefore each populati ...
The Role of Pavlovian Conditioning in Sexual Behavior
... but occur between mutually consenting individuals. This has been addressed mainly in laboratory studies using plethysmograph measures of genital arousal (changes in penile circumference). Participants in these studies are typically told to imagine the sexual activity described while listening to aud ...
... but occur between mutually consenting individuals. This has been addressed mainly in laboratory studies using plethysmograph measures of genital arousal (changes in penile circumference). Participants in these studies are typically told to imagine the sexual activity described while listening to aud ...
Jellies - ancient ocean drifters
... jelly. The medusa reproduces sexually whilst the polyp reproduces asexually. Reproduction Having now realised just how elementary the body structure of a jelly is, one probably wonders how these delicate animals reproduce. Jellies are either male or female. The eggs and sperm are contained in gonads ...
... jelly. The medusa reproduces sexually whilst the polyp reproduces asexually. Reproduction Having now realised just how elementary the body structure of a jelly is, one probably wonders how these delicate animals reproduce. Jellies are either male or female. The eggs and sperm are contained in gonads ...
SCIENCE - Troup County School System
... behavior and survival. (S7L4d) Interdependency describes how species rely on each other to meet their needs. Consumers are dependent on producers as a source of energy. In some cases, being dependent can be mutually beneficial. Some birds eat berries whole. They are dependent on the berry plant as a ...
... behavior and survival. (S7L4d) Interdependency describes how species rely on each other to meet their needs. Consumers are dependent on producers as a source of energy. In some cases, being dependent can be mutually beneficial. Some birds eat berries whole. They are dependent on the berry plant as a ...
The sociology of sex
... as angels; that is, that nothing practical follows from discussing them or attempting to manipulate them. This is clearly not the case. It is widely assumed, both in the popular mind and by the medically trained, that sex is ‘natural’: the human organism matures under hormonal influence at puberty, ...
... as angels; that is, that nothing practical follows from discussing them or attempting to manipulate them. This is clearly not the case. It is widely assumed, both in the popular mind and by the medically trained, that sex is ‘natural’: the human organism matures under hormonal influence at puberty, ...
Biological synopsis of the European Sea Squirt
... cm (Berrill 1928; Picton and Morrow 2010). Once attached, they feed on suspended particles in the water column. Ascidiella aspersa may be mistaken for many other species. When covered in debris, it resembles the clubbed tunicate Styela clava, but this species has two siphons in close proximity, whe ...
... cm (Berrill 1928; Picton and Morrow 2010). Once attached, they feed on suspended particles in the water column. Ascidiella aspersa may be mistaken for many other species. When covered in debris, it resembles the clubbed tunicate Styela clava, but this species has two siphons in close proximity, whe ...
Statutory sex crime relationships between juveniles and adults: A
... Among the issues implicit in the naming controversies are: (1) whether such youth are indeed victims, (2) whether they are capable morally or psychologically of consent, and (3) where on the continuum between coercion and voluntary choice one might want to draw the line, if at all, between these rel ...
... Among the issues implicit in the naming controversies are: (1) whether such youth are indeed victims, (2) whether they are capable morally or psychologically of consent, and (3) where on the continuum between coercion and voluntary choice one might want to draw the line, if at all, between these rel ...
body irradiation transplantation: impact of chronic graft
... hematopoietic cell transplantation (HCT) to 3 years after in 131 allogeneic and 146 • Before HCT 61% of men and autologous HCT recipients using Derogatis Interview for Sexual Function and 37% of women were sexually Derogatis Global Sexual Satisfaction Index. Sixty-one percent of men and 37% of activ ...
... hematopoietic cell transplantation (HCT) to 3 years after in 131 allogeneic and 146 • Before HCT 61% of men and autologous HCT recipients using Derogatis Interview for Sexual Function and 37% of women were sexually Derogatis Global Sexual Satisfaction Index. Sixty-one percent of men and 37% of activ ...
Association between recurrent bacterial
... bacterial vaginosis is lacking; however, several theoretical links exist. H pylori has been shown to colonize yeast within the vagina and has also been associated with biofilm formation, making it possible that H pylori is one of many bacterial species seen in biofilms present in bacterial vaginosis ...
... bacterial vaginosis is lacking; however, several theoretical links exist. H pylori has been shown to colonize yeast within the vagina and has also been associated with biofilm formation, making it possible that H pylori is one of many bacterial species seen in biofilms present in bacterial vaginosis ...
The Role of Coloration in Mate Choice and Sexual
... generate significant GEIs relating to both overall phenotypic condition as well as ornamental trait expression of a nature in which genetic variance for both condition and trait expression increases under stress. As noted for the purely phenotypic study of condition-dependence (Cotton et al., 2004a, ...
... generate significant GEIs relating to both overall phenotypic condition as well as ornamental trait expression of a nature in which genetic variance for both condition and trait expression increases under stress. As noted for the purely phenotypic study of condition-dependence (Cotton et al., 2004a, ...
Life Science
... • Compare and contrast the processes of asexual and sexual reproduction, including the type and number of cells involved (one body cell in asexual, two sex cells in sexual), and the number of gene sets (body cell has two sets, sex cells have one set each) passed from parent(s) to offspring (DOK 2) • ...
... • Compare and contrast the processes of asexual and sexual reproduction, including the type and number of cells involved (one body cell in asexual, two sex cells in sexual), and the number of gene sets (body cell has two sets, sex cells have one set each) passed from parent(s) to offspring (DOK 2) • ...
Untitled - King`s College London
... rather in subjects giving clinics access to the productivity of their in vivo biology, the biological labour of living tissues and reproductive processes. However, it does involve second order tasks – compliance with often-complex medical regimes of dosing, testing, appointments and self-monitoring. ...
... rather in subjects giving clinics access to the productivity of their in vivo biology, the biological labour of living tissues and reproductive processes. However, it does involve second order tasks – compliance with often-complex medical regimes of dosing, testing, appointments and self-monitoring. ...
Biology: Concepts and Connections, 6e (Campbell)
... التي من العبارات التالية فيما يتعلق بنظم الدورة الدموية صحيح A) The smallest blood vessels in the body are veins. B) A circulatory system is necessary in any animal whose body is too large or too complex for vital chemicals to reach all parts of the body by diffusion. ...
... التي من العبارات التالية فيما يتعلق بنظم الدورة الدموية صحيح A) The smallest blood vessels in the body are veins. B) A circulatory system is necessary in any animal whose body is too large or too complex for vital chemicals to reach all parts of the body by diffusion. ...
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.