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A term paper on pheromones
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Pheromones are substances emitted by an organism to elicit any response to the other members of the same species. In order for the substance to be classified as a pheromone, the response elicited should be innate and not learned. It serves as a communication means to inform other animals regarding things related to territory, reproduction and rearing of offspring, presence of danger or even the presence of rivals.
During the 19th century, Jean-Henri Fabre witnessed as the female emperor moth emerged from her cocoon, he placed the moth into a gauzy cage to see what might happen next. In the evening, a swarm of male emperor moths rushed to the cage containing the female emperor moth. Fabre was soon boggled by the phenomenon and so he tried experimenting. When he placed the female moth into a tightly closed container, the male moths were not able to find her, this caused Fabre to conclude that the female moth attracted the male moth through the sense of smell. It took another century before German scientist Adolf Butenandt and his team worked to seek the scent elicited by the female emperor moth to attract the opposite sex. A thousand moths were extracted of chemicals to determine the cause of the phenomenon; it was a chemical known as bombykal. After Butenandt’s discovery, scientist started to find more about the chemicals known as pheromones.
Pheromones affect the central nervous system in two different ways. One of which causes an immediate behavioral response upon reception. The second has a delayed effect on behavior. Chemical stimuli initiating immediate behavioral responses are termed releasers while those, which take time for responses to occur, are referred to as primers. Chemically identified releaser hormones are of thr...
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...erms of the upbringing is that from birth, queen bees are treated royally being placed in a queen cell with abundant food supply (royal jelly). The behavior being showed from this scenario is due to the pheromone.
In summary, pheromones are chemical signals elicited by an individual species in order to communicate with the other members of the group. There are two distinct types of pheromones mainly releaser pheromones and primer pheromones. Releaser pheromones elicit a quick response. Chemically, releaser pheromones are of three types such as sex pheromones which signal for mating, alarm pheromone which plays a role in warning the other members of the species of danger and recruitment pheromones an example of such pheromone is the trail pheromone wherein it is use as a navigational aid for the colony. Primer pheromones on the other hand induce a delayed response.
In life, actions and events that occur can sometimes have a greater meaning than originally thought. This is especially apparent in The Secret Life Of Bees, as Sue Monk Kidd symbolically uses objects like bees, hives, honey, and other beekeeping means to present new ideas about gender roles and social/community structures. This is done in Lily’s training to become a beekeeper, through August explaining how the hive operates with a queen, and through the experience Lily endures when the bees congregate around her.
von Frish, K. 1967. The Dance Language and Orientation of Bees. Cambridge: Harvard University Press.
Throughout The Secret Life of Bees , there is no shortage of symbolism, coming directly from its namesake, bees. Each connection draws upon the deep and rich meaning behind this wonderful composed text. The bees, however, never are a scapegoat. Similar to Harper Lee’s To Kill a Mockingbird character Atticus, they never allow for shortcuts or disillusion with reality. They force you to see the world as it is, and to accept it, and send love to it, for it is all you can, when you are as insignificant as a
A beehive without a queen is a community headed for extinction. Bees cannot function without a queen. They become disoriented and depressed, and they stop making honey. This can lead to the destruction of the hive and death of the bees unless a new queen is brought in to guide them. Then, the bees will cooperate and once again be a prosperous community. Lily Melissa Owens, the protagonist of Sue Monk Kidd’s The Secret Life of Bees, faces a similar predicament. While she does not live in a physical hive, the world acts as a hive. She must learn to work with its inhabitants, sharing a common direction, in order to reach her full potential. The motif of the beehive is symbolic of how crucial it is to be a part of a community in order to achieve
Intro: Working around the hives; dedicated and faster with each movement. Honey drizzling in golden crevices; a family unit working together, buzzing in harmony. Bees and beehives is a significant motif in the novel Secret Life of Bees: By Sue Monk Kidd because it represents the community of women in the novel. It also represents Lily Owen’s longing and need for a mother figure in her life. And finally, it was significant because the bees lived a secret life, just as Lily and Rosaleen did in the novel.
The purpose of this lab was to study the response of the genus Daphnia to chemical stimuli and to examine human responses to different stimuli. A stimulus is an incentive; it is the cause of a physical response. Stimuli can have a physical or chemical change; an example of a physical change is a change in temperature and sound. An example of chemical change would be changes in hormone levels and pH levels. Muscular activity or glandular secretions are responses that occurs when stimulus information effects the nervous and/or hormone system. Daphnia is a genus; it is a small crustacean that lives in fresh water. The body of the daphnia is visible and its internal organs are clearly seen thus it was chosen for this exercise. The
In The Secret Life of Bees, written by Sue Monk Kidd, Lily lacks a mother figure in her life, which leads her on a compelling journey as she desperately searches for answers about her true mother. Her abusive father, T. Ray, causes Lily to run away along with Rosaleen, the housekeeper. They are led to the Boatwright household by one of the few things Lily still possesses from her mother, a Black Madonna Honey label. Lily is given the opportunity to create a mother-daughter type bond between her and the Boatwright sisters. August, one of the sisters, acts as the “queen bee” throughout the story. August teaches Lily that a mother does not have to be someone who you share blood with, but rather, a mother is
A symbol in The Secret Life of Bees is the queen bee, one is found in all hives especially the Caribbean Pink Hive in Tiburon, South Carolina. The queen bee refers to a mated female that lives in the hive; she is usually a mother to most if not all the bees in the beehive. This symbol represents not just the bees hives that the Boatwrights work with, but also August Boatwright herself. The queen bee is a mother to all the bees in the hive just as August is for Lily, Rosaleen, June, and May, sometimes the mother you are born to is not truly meant to be your mother.
...h fertilization through deceptive pollination strategies. Actively evolving group with highly specialized adaptations for attracting, deceiving, and manipulating insects (Dressler 1).
John J. pershing was born in laclede, Missouri, on the 13th of september in 1860. He graduated from West Point Academy and graduated , and then went to fight in the indian wars and also in Spanish American war during World War I. John was the class president at West Point, yet not being the best student he still became the class president. After graduating he joined the Buffalo Soldier to fight the tribes none as Sioux and Apache. During the Spanish American war he lead the all black 10th Cavalry and was afterward was awarded the Silver citation star for the defeat of the Spanish. In 1905 John military record caught the eye the the president of the time; Theodore Roosevelt.
Pheromones are natural scents, which play an important role in sexual communication. Animals and humans release masses of biological chemicals in tears, saliva and perspiration. These aromas convey signals relating to mood, status, drive and health to the subconscious awareness of the female. The dominant male will exude more of these biological attractants than his submissive counterpart, consequently he inevitably attracts more females and enjoys more conquests. This philosophy holds well in the animal world, pheromones are consciously detected over considerable distances and serve at times in place of spoken communication. They help animals mark territory, recognize mates, and signal sexual interest. For example, female dogs in heat leave their pheromone and can attract male dogs over a mile away (5).
The activation of men’s sexual organs would be androgen hormones. Androgens are a major contributor in male’s sexual hormones. Testosterone is the most commonly known active and abundant androgen hormone. Androsterone is an inactive androgen that is made by the metabolism of testosterone and is developed in the male testes. Androgens have the ability to influence several different actions and desires within men. Usually, androgens are known as the masculine hormones although they are also found in women as well. Although not an androgen, many studies observe cortisol along with androgens because cortisol is a response to stress, also known as the "get-up-and-go" hormone. It gives men bravery to overcome challenges to reach their goals. It appears that men pride themselves in having high levels of androgens because it makes a man, a “macho man.” But what happens to androgen levels when these masculine men are exposed to situations in which they are expected to act graciously? What happens to these levels when they are preforming a task that is thought of as un-masculine? For instance, do androgen hormones levels rise or fall when men are in a relationship or become fathers? It is hypothesized that androgen levels would be lower in men who are in a committed relationship and/or in men who are fathers. Perhaps this is caused by the stress obtained or lack thereof from being in a relationship or from being a father. In this paper, we will discuss the effects of stress on men and their androgen levels, determine how being in a committed relationship can effect androgen levels, determine whether or not sexual orientation is a factor in these effects, and lastly we will be looking at how being a father or desiring to be a father can effe...
One of the study’s potential contributions to the field of chemical ecology is in its findings that broaden the evidence to support that chemical signals establish critical socio-ecological information such as identity, social status or sex in bird and other species. Another potential contribution is that this study helped to confirm the existence of an individual olfactory signature in blue petrels, which suggests that many species of birds may exhibit an olfactory kin label when selecting mates. It would be interesting to combine this study’s findings with a behavior experiment making observations in the petrel’s (or other bird species) natural habitat like the article proposes.
Darwin’s research on insect pollination constituted specific interest in orchids and became a powerful example of natural selection over time. Orchids have evolved in various ways, primarily mimicry, that increases their reproductive success, as well as influence the evolution of other insects that mimic them. Most flowers are limited to attracting insects only with their bright inflorescences and fragrance, but orchids have evolved another tactic. Some flowers in the Orchidaceae family utilize a pseudo-copulation method where they mimic insects of the opposite sex for pollination. In addition, orchids have evolved even further to releasing the female pheromone that entices the male, also resulting in pollination. Both orchids and orchid mantises have become amazingly specialized to thrive in their environment (Dobzhansky 1973). Known for their detailed skill in mimicry, these organisms are ideal to study how visual and odor deception influence relations, specifically pollination. Mimicry has become an important strategy that these organisms have mastered, giving them a significant advantage over the competition.
Honey bees are an interesting species due to their partnership tendencies. Honey bees are commonly known as “social insects” and live together in nests or hives. The honeybee is remarkable for the dancing movements it performs in the hive to communicate information to its fellow bees about the location, distance, size, and quality of a particular food source in the surrounding area.” (The Editors of Encyclopedia Britannica) Honey bees are highly beneficial to the environment and probably one of the most important insects in the animal kingdom. Honey bees are smaller than bumble bees and are distinguished from bumble bees due to their production of honey.