Breath Is Life. A Goldfish Respiration Experiment 03/05/15 Tom Nash Fish are able to breathe by swimming along and letting water pass through their mouth, over their gills, absorbing the dissolved oxygen that is in the water and out the operculum, or gill flaps. Fish are ectothermic, which means they are cold blooded and the environment it is in determines their body temperature. Therefore it is hypothesized that the more warmer the water, the respiration of a fish will go up. This experiment is to show the respiration of a fish in different water temperatures.
2. Do background research – Utilizing at least one scholarly source, describe how variations in dissolved oxygen content in a body of water can affect fish populations. Answer = “Oxygen depletions are the most common cause of fish kills in ponds. (Aquaplant, 2014).” Based on my observation of the chart and what I read, the higher the dissolved oxygen levels the number of fish drops. Dissolved oxygen levels can also cause fish to suffocate and be more susceptible to diseases.
Runoff Quality of the water flowing from the a\land is critical to the reef’s health. The ones near the mainland are the most damaged because of human activities. The land use activities near the coast increases freshwater runoff and the build up of silt. As more land is eroded by human activities the runoff increases destroying the vegetation. Fertilisers, sewage and pollutants can have direct impact on the coral reefs.
Orcas, in captivity, are likely to suffer multiple health problems, not only from disease, but from other Orcas whom they share their tanks with. Most Orcas are kept in chlorinated pools which causes their skin to become very dry, and irritable. (Blackfish) The tanks they are kept in have higher temperatures and barely enough room for the Orcas to swim which results in dorsal fin collapse. Thirty to one-hundred percent of captive, most being male, Orcas have dorsal fin collapse. (Blackfish) The tanks can also cause Orcas to become violent to one another.
Potential Risks There are many risks in a swimming pool such as: 1.) Cross infection could be a risk as a person not wearing the correct aid on an infection or not knowing that they have an infection such as a verucca, this could cause spreading of the infection to other people. 2.) The water temperature being to hot or to cold could be a potential risk as it could cause injuries such as burns and scalding if its to hot. If the water temperature is to cold it could cause reactions such as hyperthermia or shock to people and could cause them distress.
A) is neutralized by water B) is surrounded by water molecules C) reacts and forms a covalent bond to water D) aggregates with other molecules or ions to form a micelle in water Answer: B Page Ref: Section 3 11 9) Which would you expect to be most soluble in water? A) I B) II C) III D) IV Answer: A Page Ref: Section 3 10) Solutes diffuse more slowly in cytoplasm than in water because of A) the higher viscosity of water. B) the higher heat of vaporization of water. C) the presence of many crowded molecules in the cytoplasm. D) the absence of charged molecules inside cells.
3. The gas spill disturbed the ecology of the area because of the heavy discharges of biocidal wastes unleashed into the ocean. 4. Biodegradable substances provide viable solutions to the microorganisms inside the ground. 5.
The procedure consists of injecting a special fluid made up of chemicals and sand into the ground at high pressures to squeeze the natural gas back up through the rocks. By injecting this certain fluid we are leaving mercury, lead, hydrochloric acid, methane, and other poisonous chemicals left to rest in our earth’s crust. Studies show that more than 90% of fracking fluids are left underground. Because we are permanently polluting our land we are putting our environment at high risks of becoming destroyed and it is effecting human health. One resource that is at high risk of being contaminated due to fracking is water.
The result was not just the super heated earth, it also resulted in oxygen depletion, the acid rain falling would have also been toxic with the ash and other debris in the upper atmosphere falling with it, this would have created an event of ocean acidification, killing many of the organisms that could survive the low oxygen levels in a normally pH balanced body of water. Many of the organisms and animals that did survive were small, and most could thrive if not survive in a low oxygen, acidic environment. “The collapse of marine ecosystems at the end of the Lopingian was most likely triggered by a sudden and widespread flooding over all relict shelves, following maximum emergence of epicontinental seas around Pangea” (Yin, Zhang, Shang). Many marine animals that survived could produce their own food, or lived off of the organisms mentioned above. But these animals never fully recovered, even after thousands of years they never reached the numbers that they once had.
The neurotransmitters Cortisol and Adrenaline are released when a person is in a situation that requires the fight, flight, or freeze response (Seahorn and Seahorn, p.87, 2008). However, extreme stress causes neural cell death in relation to excessive cortisol secretion. Seahorn and Seahorn continue that there are many characteristics of PTSD and symptoms often appear quickly without warning. These symptoms include but are not limited to: hyperarousal, nightmares, insomnia, flashbacks, panic attacks, fear, avoidance, anger, and hopelessness