Lab QUESTIONS 1. Make an observation – Based on the data in Table 4, discuss what patterns you observe in regards to dissolved oxygen content and fish populations in the body of water? Answer = It appears that the more dissolved oxygen in the water, the more the number of fish are observed in that same area of water. 2. Do background research – Utilizing at least one scholarly source, describe how the dissolved oxygen content in a body of water can effect fish populations.
The more carbon dioxide in the water the more sodium hydroxide was needed to neutralize the solution. This experiment focused on the effects of size in relation to respiration. The results were compiled according to the size of the crayfish. As a general trend larger organisms create more carbon dioxide although they use less per gram of tissue (Davidson, 1956). It has been observed that smaller organisms have higher metabolic rates than larger organisms of the same species.
Lab 1 – Introduction to Science Exercise 1: The Scientific Method Dissolved oxygen is oxygen that is trapped in a fluid, such as water. Since many living organism requires oxygen to survive, it is a necessary component of water systems such as streams, lakes and rivers in order to support aquatic life. The dissolved oxygen is measured in units of parts per million (ppm). Examine the data in Table 4 showing the amount of dissolved oxygen present and the number of fish observed in the body of water the sample was taken from; finally, answer the questions below. QUESTIONS 1.
The Effects of Temperature on the Swimming Behavior of Daphnia Introduction: Plankton play a large role in the ecosystem. Plankton are aquatic organisms that exist in innumerable different regions of aquatic environments. They can be utilized as a food source for other planktons, large aquatic animals, and other animals. Since they are at the pedestal of the food chain, they are important since they fill the base of the ecosystems they exist in. Many zooplanktons are also ectothermic which means temperature can highly affect metabolism and growth (Jalal et al., 2013).
Lab 1 – Introduction to Science Exercise 1: The Scientific Method Dissolved oxygen is oxygen that is trapped in a fluid, such as water. Since many living organisms require oxygen to survive, it is a necessary component of water systems such as streams, lakes, and rivers in order to support aquatic life. The dissolved oxygen is measured in units of parts per million (ppm). Examine the data in Table 4 showing the amount of dissolved oxygen present and the number of fish observed in the body of water the sample was taken from and then answer the questions below. QUESTIONS 1.
These work to maintain homeostasis in terms or heart rate, breathing rate, body temperature, blood glucose levels, iron levels and concentration of body fluids (blood water potential). Some of these are outlined below. Body temperature: through being warm-blooded thermoregulation is a key aspect human homeostasis. Thermoregulation works to keep the core body temperature around 38.6°C, if thermoregulation is inhibited and the core temperature of the body rises to 45°C the active sites in protein cells within the body will denature and stop functioning resulting in the death of the individual. Thermoregulation is controlled by the hypothalamus, using two sets of thermo receptors one set in the hypothalamus, these measure the temperature of the blood passing the brain (core temperature) and the other based in the skin to measure the external temperature both are needed for the body to make adjustments accordingly to maintain the body temperature.
Name: Alexis Savastano How Does pH Affect an Enzyme? Catalase is an enzyme that helps decompose the toxic hydrogen peroxide that is produced during normal cell activities. The products of this reaction are water and oxygen gas. The pressure of the oxygen gas in a closed container increases as oxygen is produced. Any increase in the rate of reaction will cause an increase in the pressure of the oxygen.
It has many different components within the cardiovascular system too, the main components include the heart, arteries, veins, capillaries and the blood. The heart is the key organ to the circulatory system. Its main function is to circulate oxygenated blood around the body and to deposit carbon dioxide into the lungs so it can be exhaled. The cardiovascular system works with a persons metabolism and are designed to do that in order to make sure the nutrient molecules are transported around the body to parts where they are needed. The Respiratory System The respiratory systems main function is to inhale oxygen and exhale carbon dioxide.
The level of osmotic pressure is equal in the intracellular fluid, and the extracellular fluid.’ (Study.com, 2015) ‘Osmotic pressure is vital within the human body because it allows water to enter a cell if there is lack of water, and vice versa, if there is too much water within one cell, the osmotic pressure will allows the electrolytes to exit a cell.’ (Study.com, 2015) ‘Intracellular fluid has important functions, it transports food within the cells, it also brings waste products from the cells so that they can be picked up and excreted from the body, and it maintains the shape and size of the cell.’ (Nursing411.org, 2015) ‘Extracellular fluid is located outside the body cells. The extracellular fluid consists of one-third of the water contained in the body. The extracellular fluid has many functions; it carries nutrients and oxygen to the body cells and waste materials from the cells. There are two types of extracellular fluid, including interstitial fluid and intravascular fluid.’
By shining a light at different distances to the Elodea plant a trend may be observed between light and the rate of photosynthesis. Elodea Canadensis will be used as the aquatic plant in the experiment since it has been proven in similar experiments that they release oxygen bubbles during photosynthesis. If similar results are obtained, then they results will increase the validity of experiments with comparable findings. Baking Powder will be added to the water that the Elodea will be placed in since it will increase the amount of carbon dioxide due to the fact it will enhance oxygen production in the Elodea during photosynthesis. Hypothesis When the light is at a closer distance to the Elodea plant, the amount of oxygen bubbles produced in 2 minutes will increase displaying the high rate of photosynthesis.