In evolutionary terms a male can reproduce and almost infinite amount of times when compared to a female who can only reproduce every 9 months minimum (Buss, 1995). In evolutionary terms a male is also looking to reproduce to pass on his genetic legacy in his offspring. As mentioned humans have evolved to a level where most of the recessive genes have not been passed on and that there are now clear characteristics that males seek when looking for a healthy partner. Due to the nature of western society it is frowned upon for a male to have multiple sexual partners due to the level of investment that can actually be provided. That means that although in evolutionary terms a male is able to reproduce at a far higher rate that females in humans they are more likely to settle on one sexual partner, in accordance with the fact that the males resources will be limited and stretched thin over a long period of time, it would not be possible to rear multiple offspring with different sexual partners.
If the flies in question ended up in a place where there were no predators at all, my prediction would be that they all remained the same color and developed and reproduced abundantly. Predators would have caused the most “attractive” flies to diminish within the population due to the fact that they had no protection against them. The only flies that would have been left are the flies selected by natural selection, the flies that were able to survive and reproduce. Those would have been the flies that were less “attractive” and blended in with some other sort of means of protection. My prediction for the color of the flies that were able to mimic in the presence of predators would be that it also stayed the same.
Describe the evolutionary approach to explain parental investment in humans; sex differences, parent-offspring conflict. Firstly females’ initial investment is far greater than that of males. This is because the eggs of a female are less numerous and more costly physiologically to produce then male sperm. Furthermore a female can only produce a limited number of offspring where as men can produce virtually an unlimited amount. Males and females both compete for different things; males want quantity so they can increase the size of their gene pool whereas females want quality in their males and them to provide good resources.
Competitive sports: the most universal activity throughout the world, and possibly the universe. All sports have their loyal fans, who stick with them through the good seasons and the bad, the trophy-raising dominating seasons and the worst in the division seasons. However, obviously not every team can win their leagues championship every year, and mostly many teams go years upon years without winning some hardware. Years ago, teams with the best records that won championships typically generated the most income and revenue and would draft and buy the best players, therefore creating dynasties and would give other teams no chance of winning. In the recent years professional sports leagues have fixed this problem by creating what is known as
By spending a relatively large part of their reproductive effort on courtship and mating , males of most species can afford to devote rather little to parental investment. The parental investment theory helps us to understand mate preferences especially the finding by Buss. Buss found that women valued material resources and industriousness in potential partners. In contrast males who make less parental investment will be more reproductively successful if they have multiple matings with young fertile females. This helps us understand why youth is universally important to men.
Discuss the relationship between sexual selection and human reproductive behavior ? In evolutionary terms natural selection is the process by which certain characteristics and behaviours get passed on in the gene pool because they give the individual a better chance of surviving and reproducing. Sexual selection is the process within natural selection, wherby indviduals adveritise both there own requirments in a mate and there own attractive charisitcs. Selection invilves attracting the mate with the greatest fitness whilst at the same time maxmising the chances of being fit themselves. Fitness in evolutionary terms is the abilty to reproduce and leave offspring.
If the animal’s parents are closely related, however, the likelihood that the same mutated gene will be passed to the offspring is more likely to occur because there is not a normal gene to mask it (4). This incidence can be illustrated in the Florida panther population. The lack of genetic diversity in the earlier Florida population showed a high likelihood of inbreeding, thus more genetic defects. The genes given from the Texas panther population are aiding in replacing the negative recessive genes, which can be seen through the marked decrease in detrimental traits. Proper nucleic acid enzyme repair is vital for nucleic acid mutations seen in Florida panthers and is a very important concept in the study of
Instead, Beowulf does the right thing and because he does fate repays him by allowing “her stabbing blade to be blunted by the woven mail skirt” (71, 1547-1549). This shows that since Beowulf didn’t have to fight but knew it was and did fight, fate repaid him by sparing his life. Finally Beowulf proves he has the characteristic of fighting for what’s right by fighting the dragon in his old age. Beowulf, now in his 70s, could’ve just lied and down said his time was near anyway. However, that doesn’t represent a hero so Beowulf knowing he might not make it back, knows he must fight and he “feels no shame, with shield and sword” (101, 2517-2520).
Luke Troutman Mrs. B.L. Honors English III September 30, 2008 Wealth Overcomes Love In The Great Gatsby; Tom, Daisy, and Myrtle’s desire for wealth prohibits them from developing substantial relationships. Living a lavish lifestyle, with constant happiness keeps them from actually loving a person for who they are, not how they live. This shows a want for happiness in men, or women, and how they forget about love to obtain happiness and worldly possessions. Since he was a child Tom had always been wealthy acquiring everything he desired causing him to act childishly always wanting his way and to become wealthier.
When horses suffer significant injuries in steeple chasing they are euthanized swiftly, which further demonstrates it is not a cruel sport. The sport Steeple chasing, better known as horse jumps, is widely recognised as cruel, but the truth is people who think its cruel are dim-witted and uneducated, as it is in fact beneficial