Crayfish are decapods pertaining to the phylum arthropoda, which are invertebrates and contain an open-circulatory system.1 The system works by the hemolymph getting re-oxygenated in the gills before being transporting to the heart by brachio-cardiac veins and then pumped to sinuses that bathe tissues with oxygenated hemolymph.2 The crayfish contain a neurogenic heart that depends on neuronal input from cardiac ganglion.3 The neurogenic heart requires nerve impulses to produce contractions in contrast to a myogenic heart that can contract independently from the nervous system.3 The crayfish heart will beat due to the reaction of the ganglion to stimuli in the environment.4 Stimuli will affect the autonomic nervous system in the crayfish that control involuntary actions such as the heart rhythm.4 Neurotransmitters are the chemical signals in which the nervous system regulates both heart rate and contraction.3The autonomic nervous system breaks into two categories as parasympathetic system that is involved in relaxation of organs and the sympathetic system that will stimulate increased activity. Neurotransmitters can either increase or decrease heart rate by altering the patterns in neural activity of the heart.4 Crayfish are poikilotherms, which means they cannot metabolically thermoregulate thus conform to the ambient temperature in the water.
Corotto, F., Ceballos, D., Lee, A., & Vinson, L. (2010). Making the Most of the Daphnia Heart Rate Lab: Optimizing the Use of Ethanol, Nicotine & Caffeine. The American Biology Teacher , 176-179. The purpose of this article was to test the effects of chemicals on Daphnia magna.
The following experiment determines the effects of 50 ml tobacco extract on the heart rate of a crustaceans Daphnia Magna. Daphnia represents a small group of aquatic crustaceans, also known as “water fleas”, with clear exoskeletons, which makes studying their heart rate effortlessly. The heart rate can be observed using a microscope and counted under varying conditions. (Pritchard, J. B.) In this case, changing the type and concentration of natural plant substances reveals the effects of the plant defense mechanisms on the specimen of Daphnia Magna.
The monster in the book Frankstein did not receive justice in anyway, for multiple reasons. Some of the reasons I believe in the novel, the monster did not receive justice because, he was brought into this world without knowing and without having an idea of what is going on. The first sort of injustice that the monster received was being brought into the world without having someone able to direct and educate him. If the monster would have had victor there with him from the start the monster have not been as crazy and murderous as he is in the book.
Nonetheless, besides fish, many other kinds of poikilothermic animals, such as snakes and frogs, use lungs instead of gills to breathe, and further researches may be conducted to explore if caffeine has an effect on their metabolism. For example, forty northern leopard frogs with similar body size will be captured and divided into twenty trials, and each two frogs will be tested in the same control and experimental conditions as the goldfish metabolism experiment did. The collected slopes of oxygen concentration will then be converted into oxygen consumption rate and analyzed by the paired t-test. If the difference in the oxygen consumption rate between the control and experimental groups is statistically significant, this experiment will show that caffeine affects the metabolism of frogs, one kind of poikilotherms that use lungs to
Today, Jack killed a pig. He and the other hunter boys painted their faces and danced to a war chant to get pumped up for the hunt. The group eventually found the pig, surrounded it, and stabbed it to death with sharpened sticks. Jack and the boys have become very aggressive and violent. They are constantly obsessed with killing pigs, rather than worrying about the fire like I do.
The term monster is a derogatory term to use against an individual, yet monsters lie out in the world. Some are actual horrible people, but some are misunderstood. The book Monster by Walter Dean Myers describes 16-year- old Steve Harmon and his journey throughout the scenes of a frightening experience. The experience of Steve is heart-breaking by people calling him a monster and him calling himself a monster. The amount of time that Steve has faced in jail will dictate how it will affect his inner self in the future.
There 's such a great amount of going ahead in Fantastic Beasts that after the principal demonstration, you practically can 't be tried to mind what occurs next. In the film 's reality, there 's a mysterious clarification for everything, which implies story rationale again and again gets left by the wayside. What 's more, the brutes? They 're regularly really awesome. A puffin-sort animal with an affinity for negligible burglary, a kind of rhino-hippo thing whose rough face shines as though lit from inside, an exquisite green twiglike being whose attitude is timid however his activities are chivalrous: These are quite recently a portion of the companions who consume up room in Scamander 's inconceivable bag, which opens up into its own
MR Bytes The static characters in the film The Elephant Man is Mr Bytes the sideshow manager in the carnival. He does not change throughout the whole movie because he did not understand,wanted to just make money,he is the owner of a sideshow in the carnival. Mr Bytes does not understand what Joseph Merrick was going throughout his whole life.
SENTENCE OUTLINE Thesis Statement: A student who is considering attending West Career and Technical Academy needs to consider all of the advantages this school has to offer before determining whether or not to attend. The first thing the audience is going to see is a title slide that features an image of the school and the title of the presentation. A. The picture of the front of the building, of the West Tech, sign.
1) According to the film, the standard metaphor for a corporation is that of an apple within a barrel where most apples are good and just a few bad. Several CEO’s offered alternative metaphors, such as pieces of a jigsaw puzzle, a sports team, family unity, a telephone system, or an eagle. Less flattering metaphors are that of a devouring monster, a whale, or the Frankenstein monster. Are any of these metaphors more appropriate than others?
The journey of achieving self-love in To pimp a butterfly Kendrick Lamar is an American rapper and songwriter known for his uplifting and progressive music. His music is known to be aware of issues within society and communities. It is also aware of deeper issues within himself, which Lamar takes a careful interest in considering his youth in Compton. The album, To Pimp a Butterfly, addresses the topics of racism, oppression, materialism, and self-love.
Over the past century, Frankenstein has been analyzed and interpreted in seemingly infinite different forms of literature, film, and television shows. Once solely recognized as the story about a brilliant scientist who creates a creature in whom he regrets making after the creature turns out ugly, Frankenstein now represents an internationally recognized and commercialized pop culture symbol for Halloween decorations and costumes. When analyzing and appreciating the true literary essence behind Mary Shelley’s original Frankenstein, one of the most important comparisons to consider remains the underlying influences behind the Creature’s immoral actions and whether or not the blame for these actions belong to Victor or the Creature. When exploring the dichotomy of the Creature versus Victor Frankenstein, one of the biggest and most widely debated questions remains whether Victor should be blamed for the Creature’s destructive actions or if the Creature should be considered guilty for his actions based off of his own free will. Many consider Victor Frankenstein the villain of the story due to his repetitive decisions to abandon and avoid his own “mistake,” the irresponsible choice of creating the monster in the first place, and his obvious negligence of the Creature’s feelings.
Breathing deeply, I retched at the sickening smell of rotten flesh and pus. Looking around, I caught a brief glimpse of the creature that was stalking me. Noticing my stare upon it, the creature melted into the shadows as if it was never there. This wretched labyrinth was starting to get to me.
Frankenstein and his monster begin with opposite lives: Frankenstein has everything and the monster has nothing. However, in creating the monster, Frankenstein’s life and feelings begin to parallel that of the monster’s life. Frankenstein is incredibly intelligent with a fascination for science, but ultimately his thirst for knowledge leads to his undoing. Similarly the monster is determined to understand the society around him. But once he does, he understands that he will never be able to find companionship, which leads him to pain and anger.
