Are there advantages to swimming in school? The answer is yes. There are many different ways that swimming in schools can help fish. There is safety in numbers, so one way is that it keeps fish safe from bigger predator fish that might try to attack and eat them. Some fish swim so close together they blend in with each other and to a predator it would look like one huge fish, making the predator confused and scared so they swim away.
Fish oil has also been tried for preventing heart disease or stroke. The scientific evidence suggests that fish oil really does lower high triglycerides, and it also seems to help prevent heart disease and stroke when taken in the recommended amounts. Ironically, taking too much fish oil can actually increase the risk of stroke. Fish may have earned its reputation as “brain food” because some people eat fish to help with depression, psychosis, attention deficit-hyperactivity disorder (ADHD), Alzheimer’s disease, and other thinking disorders. Some people use fish oil for dry eyes, glaucoma, and age-related macular
Sea Salt vs. Catecholase Introduction This experiment was done to explore the hypothesis: “Salt will decrease the efficiency of the catecholase enzyme, in the catechol and catecholase solution, resulting in a smaller amount of light being absorbed.” Through a biology lecture on enzymes and the process of denaturing with pH, heat and salt, one of our team members, posed the question; “Would different types of salt (such as sea salt ) change the rate of enzymatic activity, in terms of denaturing?" Professor Crowell-Murray explained that “sea salt doesn't contain iodine and is processed differently than iodized table salt”, therefore she wasn't sure if sea salt would change the rate at which enzymes work. She was intrigued by the question and said that if possible, “it was something that should be experimented." She stressed her interest in obtaining the results of such an experiment. It was also stated by Professor Bob Prior that “it is possible for salt to hurt an enzyme due to the fact that salt can change the polarity of certain parts of an enzyme.” Over time, salt tends to denature certain enzymes, making them less efficient catalysts.
Copper (II) sulfate is toxic to fish, and must be used wisely when eradicating pesky snails and fish parasites. To protect our water pipes, we use Copper (II) sulfate to keep evasive water plant roots at bay. This special Compound is also a helping hand in organic synthesis, reacting with potassium permanganate to make an oxidant for primary alcohols. At one point in the medical field Copper (II) sulfate was used as an emetic, which made a patient throw up immediately after consumption, but is now regarded too toxic for this use. The most interesting use most would say, is the way Roger Hiorns used 75,000 liters of Cu(II)SO4 to fill an apartment, and left it to solidify for many weeks.
If someone had been handling raw food and decide to pour you a glass of water you can catch this infectious disease as well. When you have salmonellosis and fail to wash your hands while handling food or water you are putting others around you at risk and that can lead to more people getting the disease. Washing your hands is a small thing to do to avoid salmonella. 3. What is an example of a real life outbreak of this foodborne illness in the United States?
This study is about highlighting the risk-factors of fish-derived supplementation and what dosages are best to help fight pathological diseases of the cardiovascular, immune and neurological systems, and if these levels are in all fish oil supplements that are currently on the market or is the use of these fish oil supplements overrated and of little effect, evaluation of the products on the market was reviewed and compared to known scientific benefits of taking the natural fish oils in a diet. The results and conclusion of the study revealed evidence of toxins in fish oils derived from fish liver and this contamination rendered many supplements of fish oils unusable for pregnant women and infants further to this the amount of omega 3 in most supplements was below that which would prove significantly active and given that omega 6 would also be required for omega 3 to be active most supplements only had omega 3. However from research it is undoubtedly that the benefits of fish oils containing omega 3 and omega 6 are beneficial to developmental health, which arrived at conclusion that
Null Hypothesis: An exposure to higher concentrations of caffeine will have no effect on the heart rate of daphnia. Apparatus: • Microscope • Stop clock • Cavity Slide • Dropping Pipette • Daphnia in Pond water • Distilled Water • Different concentration of Caffeine Independent and Dependant/Other Variables to be controlled: The independent variable in our experiment was the different caffeine concentration that we will change. The dependant variable will be the heart rate of daphnia. There will be some variables that we need to control in the experiment such as the temperature of the surrounding and water, the volume of solution dropped on daphnia, the size of daphnia and stress of daphnia also the time of acclimatisation must be the same. Method: In our experiment we removed one daphnia from pond water and placed on cavity slide and under a microscope.
1). In addition to the mobility and contamination of water, atrazine is also a potent endocrine disruptor active in the parts per billion range in fish, amphibians, reptiles, and human cell lines (Hayes et al. 1). The use of atrazine has been described by Heather Hamlin, an assistant professor with the University of Maine, School of Marine Sciences, as being responsible for a host of health problems seen in fresh water fish and amphibians (Hamlin 1). Research has shown that atrazine in water gravely affects male frogs by decreasing testosterone levels (Hayes et al.
Mini Ecosystem inside a Jar Lab Report By Student X, B2 Question/Purpose: Does the amount of water in the jar/ecosystem affect the organisms living inside? (And if so, what kind of effect does it have on them?) Hypothesis: If we only add half the amount of water we put in the control jar to the experimental jar, then the ecosystem will be less healthy (for example, the plants, fish, and snails might die earlier) because organisms need water to survive. Also, since the water is what they’re living in, more water means more room to live. Materials: Two 1-liter glass jars with lids One guppy per jar Two snails per jar Aquatic plants (equal amount in both jars) 200 mL of gravel total (1 inch layer on bottom of each jar) Water – almost up to the top of the jar for the control group, and about halfway full for the experimental Variables: Constants: Guppy x1 Snail x2 Aquatic plants Gravel Manipulated: Water (specifically, the amount of water – half full in experimental, full in control) Method/Procedure: 1) Set up the control jar by filling an empty jar with water and adding a layer of gravel on the bottom, one guppy fish, and two snails.
Fish normally develop bradycardia when they are withdrawn from the water. Introduction Diving response refers to a psychological response in human and animals that allow them to survive when submerged in water or are drowning. It leads to blood being redistributed to vital organs such as the brain and heart hence ensuring a constant supply of oxygen. This leads to longer periods of suspended breathing (apneia) without risking asphyxiation (Robertson, Biaggioni, Burnstock, Low and Julian, 2007, p. 569). Diving response is achieved through constriction of blood vessels and reduction of blood supply to oxygen tolerant tissues with the heart rate