Facial Display Experiment

This lab was conducted with the purpose of confirming the trait of homeostasis among goldfish. During the experiment, it was recorded that the fish would increase gill movement when placed in colder water two out of the three trials. However, the results showed no significant difference in gill movement in various temperatures of water. This has very little effect on the broad field of science since our only three trials were performed and may have included human error in the trials.

13. Which of the following is not an expected response in a fish to a drop in water temperature?

When compared to a similar study, a similar conclusion was made. In a study conducted by Gerristen, he studied if Daphnia would experience a positive or a negative thermotactic reaction when exposed to a variety of different temperatures. Once the experiment was completed, Gerristen was able to conclude that the Daphnia did indeed experience a negative thermotactic reaction and swam away from the cold stimuli. He claimed that these results were due to the Daphnia’s natural instinct to seek warmer water (Gerristen 1982).

- To test this hypothesis my experimental approach would be testing different bodies of water or testing one and just testing different areas while tracking the fish.

At the conclusion of the experiment, the two hypotheses were reviewed. Because the water temperature did affect the normal respiration patterns of the goldfish, the null hypothesis was disregarded and the alternative hypothesis was accepted. From the results of this experiment, it was concluded that although other environmental factors could play

Evolutionary history effects more than just genetic behaviour level. It also effects how society socializes its members. Males –despite having the innate behaviors and perspectives on relationships— experience socialization that, in essence, reinforces gender differences in perspectives and behavior. From early childhood up until adulthood, the individual is bombarded with a plethora of advertisments that portray males as more aggressive (Henslin p. 78). In television male newscasters turn female athletes into sexual objects (78). And socialization is not limited to the media. It begins in the home –within the family. In an experiment performed by Goldberg and Lewis, Mothers were more less likely to keep their boys

AbstractIn this paper will discuss the sexual selection theory and gender role theory. Then, what are the main principles of each theory? Additionally, what position is taken by each theory on the origins, development, and causal mechanisms of aggression? Moreover, give an example of aggressive behavior that may be explained from the perspective of sexual selection and from the perspective of social role theory that is not covered in the reading. Furthermore, discuss at least on psychological phenomenon that may influence displays of aggressive behavior as explained by the sexual selection theory and the social role theory.

Human identification is one of the important part in forensic medicine. It consists of a series of steps to differentiate individuals and establish their identity. Forensic anthropology serves an important role in reconstructing the biological profile, taking into consideration its four main components: ancestry, age, stature as well as sex and despites having the same bones, male and female skeleton exhibit a number of differences (Lima et all, 2012). Sexual dimorphism is best describes as the difference based on phenotype characteristic between males and females of the same species. (Yesmin et all, 2011).

The research team identified that these little cavefish did indeed have an increased ability to detect movement in water when compared to stream fish and that the larger the cupulae, the greater the sensitivity in detecting movement. One would expect that the ability to detect movement would increase with experience thus with age but, this is clearly not the case amongst

Because males tend to value influential goals such as status among peers, they will typically use overt forms of aggression and gradually incorporate relational forms (Grotpeter & Crick, 1996). The choice of aggression could be linked to the social roles of males and females, the verbal maturity, or the social dynamics in peer relationships.

Explain how aggression is learned according to the Social Learning Theory proposed by Bandura & Todo, 2003).

A biology based theory on competitiveness is the ‘male dominance theory’. Developer of this theory, Steven Goldberg, presents in his book why the biological difference between men and women leads to ‘male domination’ (1993). This biological difference is mainly based to be found the difference in testosterone levels between men and women (Goldberg, 1993: 131). The level of testosterone would result in men having greater tendencies to be aggressive and a drive to dominate others. This ‘aggressive advantage’ would men also make more competitive and self –assertive. In combination this leads to men being more elicited to be dominant on average than women on average.

It was observed that dusky dolphins traveled in groups of 6-15 individuals. 20-30 of these small groups may be in a 100 square km area. These small groups suddenly stop moving when a school of fish is seen. Dolphins begin swimming around and underneath the school. They also leap at the sides of the school. Observations show that the group of dolphins herd the fish to the surface so they cannot escape. While the other dolphins maintain the bubble, one individual at a time will break ranks and collect up to five anchovies. They will then join back into the barrier and another dolphin will take its chance to eat. It was also observed that the group of dolphins did not feed for a long time. The average time spent feeding on one group was five minutes. Eventually that school of fish will escape and the group will move on and begin to hunt for some more fish for several

They also did some additional observations on captive cuttlefish which, in my opinion, may not be so reliable because it is known that behavior of animals can change substantially during captivity due to unrealistic social and physical surrounding of the individuals. What the scientists did during their observations was they followed a male cuttlefish and took photos of close encounters of the individual with other individuals. The photos were taken so that both sides the male’s body is visible in the photo. They also recorded the number of individuals within the social interaction group and their

During this projects it was tested to see how each fish would react to the water. Most of the fish in the dirty water have died, all but 2. More of the fish died in this tank then the normal water tank.