Birine Shrimp Lab Report
Daphnia Magna are small crustaceans that are excellent for observing the effect of depressants on their nervous system. The purpose of this specific experiment is to observe the effect of ethanol, aspirin, and caffeine on daphnia’s heart rate. Not only do these chemicals affect heart rate, but they also affect the frequency of reproduction, number of eggs produced, and body structure. Pesticides similar to these chemicals can be released into the environment and daphnia re useful in monitoring toxicity levels. The agents being tested in this experiment can be administered to determine the effects of hormones, stimulants, antidepressants, and neurotransmitters.
Holly Weiss SC-131 Unit 7 Acidosis and Alkalosis Assignment The normal pH value for the body fluids is between pH 7.35 and 7.45. When the pH value of body fluids is below 7.35, the condition is called acidosis, and when the pH is above 7.45, it is called alkalosis. Respiratory acidosis is a condition that occurs when the lungs cannot remove all of the carbon dioxide the body produces.
My hypothesis for this experiment was not what I expected it to be. Instead of having each section grow in size due to the solution was incorrect. I only had my 1% with solution grow. This is the lowest concentration level I had and my lowest number of brine shrimp in the section without concentration as well. The other sections with my 5% and my 10% concentration ended up with no hatched eggs at all.
I organized four different tests; pH paper, alkalinity tests, the number of rocks neutralizing acid, and the number of rocks that don’t neutralize acid. The average for pH paper was seven. The pH is the numeric scale used to specify the acidity or alkalinity of an aqueous solution. The pH scale measures acidity and alkalinity. the pH scale goes from zero, which is an acid reading, to fourteen, which is an alkaline reading.
“A righteous man regardeth the life of his beast: but the tender mercies of the wicked are cruel” (King James Version, Prov. 12.10). In order to fully regard the life of God’s beasts, we must preserve/facilitate their population so others can look and marvel at God’s creation. Information shows that seahorse populations are commonly vulnerable to heavy exploitation due to traditional Chinese medicine (TCM), aquarium trade, and destruction of natural habitats (Allee). The IUCN red list of threatened species tracks animal populations and classifies them based on conservation status. Many species of seahorse such as the Hippocampus Reidi are classified as data deficient; showing there is a lack of research and concern over these disappearing
Natural Selection is the concept that organisms better adapted to their environment tend to survive and produce more offspring. This leads to the creation of populations and diversity of life within them. In the Skittlefish Lab, many separate occurrences can be observed which detail and explain how Natural Selection works on a population over a period of time. Certain adaptations in a species in its entirety may display how individuals impact the whole population as they pass their traits onto their offspring, which do the same. This lab required students to observe the individual “Skittlefish” and “Sea M&Ms” in different environments as they camouflaged and hid from predators.
Blackfish The documentary Blackfish, directed by Gabriela Cowperthwaite released in July 2013, explores the mistreatment of killer whales and the relationship between the killer whales and trainers as well as the significant problems of the sea-park industry, with a focus upon SeaWorld. Cowperthwaite positions the audience to feel sympathy towards the killer whales by making deliberate choices in sound, visual, language, and structure through the representation of trainers as unprofessional, and whales as mistreated, also experts as reliable information source. Firstly, Cowperthwaite uses effective language techniques to position the audience to view the trainers as undertrained and unprofessional.
The purpose of this lab was to test the effect of pollution on algae growth. Through a series of experiments that lasted a month, four of the six hypotheses were proven to be correct or partially correct. The first hypothesis stated that if 0.5 mL of salt was added to algae, then the algae would grow slower than the positive control. This was proven correct, as shown by the difference of the data from the positive control and the container with 0.5 mL of salt in it.
Seymour’s Bananafish and an Impossible Pursuit of Innocence In Salinger’s short story “A Perfect Day for Bananafish,” Second World War veteran Seymour struggles to navigate through his dissatisfaction towards the materialism of the modern world and his impossible desire to return to the pure and uncorrupted state of innocence. Seymour’s wife, Muriel and mother-in-law both typify the vapidity that he so despises, all the while revealing through their conversation the external circumstances that have shaped him. Meanwhile, through Sybil, the child with whom Seymour shares a deep spiritual connection, Salinger reveals Seymour’s consequent tormented and complex psyche. The leitmotif of bananafish, which in their fatal insatiability symbolise adult
Acids are proton donors in chemical reactions which increase the number of hydrogen ions in a solution while bases are proton acceptors in reactions which reduce the number of hydrogen ions in a solution. Therefore, an acidic solution has more hydrogen ions than a basic solution; and basic solution has more hydroxide ions than an acidic solution. Acid substances taste sour. They have a pH lower than 7 and turns blue litmus paper into red. Meanwhile, bases are slippery and taste bitter.
When one thinks of a veterinarian, most associate this job title with treating dogs, cats, horses, cows, and other farm and companion animals. However, a relatively small field not known by the general population is that of marine veterinary medicine. If one has a passion for the water and a desire to help the creatures in it, marine veterinary medicine just may be the perfect career. Marine veterinarians are responsible for “conducting basic exams and evaluations, giving vaccinations, taking samples of blood and other bodily fluids, prescribing and distributing medication, evaluating behaviour, performing surgical procedures, and taking x-rays and sonograms” (Kramer “Life of an Aquatic Veterinarian”).
At times, 80-90% of the whole catch may be non-commercial fish, that are killed and thrown back into the ocean, mainly dead. This happens because some fishermen are careless, and do not know where the fish they are meant to catch, causing them to catch fish that are not commercial. Others may think that if the fish is not a “food fish” then it is released back into the ocean, and it will live. This is not true because by the time the fishermen get around to collecting the fish they want, most of the fish are already dead. They may throw back a few fish, but those will most likely die, or become quick food for a predator.
Strong acids and strong bases are strong electrolytes and are assumed to ionize completely in the presence of water. Weak acids however, only ionize to a limited extend in water. Any weak or strong acids when in contact with any weak or strong alkali will start to undergo neutralization regardless of their volume. When an indicator which is present in the acid-base mixture and have experienced colour change, it indicates that the mixture is in right proportions to neutralize each other and is also known as the equivalence point.
The effects of alcohol on Biological Membranes. Introduction In this experiment it will be analysed the damage alcohols can have on biological membranes. Membranes are made up of lipids and proteins. Membranes usually help maintain the balance in a cell as it holds all the cellular materials.
Biochemical tests are the tests used for the identification of bacterial species based on the differences in the biochemical activities of different bacteria. Bacterial physiology differs from one species to the other. These differences in carbohydrate metabolism, protein metabolism, fat metabolism, production of certain enzymes and ability to utilize a particular compound help them to be identified by the biochemical tests. Gram’s stain was originally devised by histologist Hans Christian Gram in 1884. Gram-positive bacteria stain purple, while Gram-negative bacteria stain pink when subjected to Gram staining.
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