Reproduction

Darwin’s second observation was that of sexual selection (Hosken & House, 2011). Sexual selection selects for traits that make an individual more successful in finding a mate and producing offspring (Kansehiro, 2009). Most often, this type of selection involves males (Hosken & House, 2011). A prominent example of a male trait that is subject to sexual selection is courtship behaviour (Eberhard, 1994). Courtship allows mates (most often females) to gain information about the quality of their…

We have observed the morphological traits from male and female of two Bruchinae species, which are Senegalia tenuifolia seed-predators, and how these traits are influenced by the resource traits variation under different conditions such as sampling events and sites. In respect to our hypothesis in which the increase in resource quantity increases body size and biomass, we have confirmed it partially. In general, female insects tend to have a larger body size than the males, and the difference…

to the child, we treat the child as a mere commodity. (Lack of appreciation for the child’s intrinsic value other than its instrumental value) However, Satz’s argues against this as she does not think that there is a “difference between women’s reproduction labour and human labour that would be relevant to contract pregnancy”. She raises criticisms against contract pregnancy that believes in the special nature of parental love which arises when conceiving the child. She views the mother-child…

than family, schools truly are the most important source of guidance in a child’s life. However, when the situation arises (as it does quite often) that a child is failed by their schooling system, how is their development affected by it? Social reproduction theory is essentially a theory that discusses how social inequality is passed from generation to generation. This theory is based…

The issue of surrogacy and birth technologies with family law brings up a myriad of legal implications. Technology has and will continue to expand and evolve at an accelerated rate. Laws governing the use of such technologies are failing in some areas and the law fails to keep up with the rapid changes in society and technology. This is because the surrogate mother has exclusive custody rights; she cannot be forced to give up the child and also has a period of reconsideration of initial…

Human mating is observed in almost every culture, leading us to the diverse world we live in today. This signifies our existence and should be important to us. To better understand this behavior, we can take a look at different explanations which shape human mating behavior. Researching this topic we can find evolutionary perspectives, which delve into topics, such as parental investment, survival, and sexual selection. There is also an opposition to these evolutionary ideas which suggest that…

“There will be over 3,500 killed in the USA today from abortion. No flags lowered, no presidents crying. No media hyperventilating. Normal Day,” –Matt Drudge. Abortion is a very serious and controversial topic. Before I begin I must say that you should be informed on the opposing side as much as your own before you argue on a subject such as this. Which I have done throughout my first learning about abortion to now. With that said, I will be explaining abortion, giving statistics, countering…

Sexual differentiation in monomorphic avian species Madeleine Evans ID: 213023921, Deakin University Waurn Ponds, Course S323 Biomedical Science, Subject SLE254 Genetic Introduction Sexual differentiation is one of the first biological processes to occur during the development of a foetus. There are a variety of methods for sex determination amongst vertebrates including analysis of primary and secondary differentiations. Primary differentiation refers to the presence of gonads, while secondary…

Sexual reproduction is a type of reproduction in which two different cells combine, which create an offspring. When two cells called the egg for female, and sperm for male, combine and join together they create a new organism called a zygote. During meiosis, one diploid cell divides and makes four haploid sex cells. Meiosis has two divisions of the cytoplasm and the nucleus, the divisions are called Meiosis I and Meiosis II. Reproductive cells go through interphase before meiosis. “ A…

Amianthium muscaetoxicum, commonly known as fly poison, is a perennial plant found in throughout the Eastern United States. Other common names include crow poison and stagger grass; the name fly poison arose from the translation of the Latin name A. muscaetoxicum, muscae meaning flies and toxicum meaning poison. In the past, the Cherokee would use the plant’s poison to kill crows, hence its common name crow poison, while early settlers would mix the crushed up bulb with honey to kill flies (Fly…