Overview Canada flushes approx 200 billion liters of raw sewage directly into natural waterways every year, from the St Lawrence River to the Strait of Juan de Fuca and the Pacific Ocean. That is only six percent of the three trillion liters of sewage Canadians produce annually but it is still enough to fill more…
One of the major environmental crises that are taking place in the world today is the extensive destruction of the Amazon rainforest. This has been a problem for four decades now, since the rapid increase in the population of the globe meant that it has become necessary to find land on which to grow crops…
Water, the most important resource on the planet, is not simply “H2O” unless it is first distilled. It contains many natural elements, some beneficial to health and some harmful. Water constituents are defined as a hazard when they have the potential to impair health. In addition to the natural hazards humans add to the constituent…
Over the past few years, Autism Spectrum Disorder has been on the rise in North America and the reasoning behind this increase has been studied greatly. Autism Spectrum Disorder, otherwise known as ASD, is characterized by the presence of chronic inflammatory disease and loss of acquired cognitive function, possibly due to absorption of vitamins or…
Microevolution: The change in the genetic makeup of a population from generation to generation Mendel’s model: the particulate hypothesis of inheritance Quantitative characteristics: characteristics of a population that vary along continuum. Eg. Fur length in mammals Population genetics: study of how populations change genetically over time. Modern synthesis: a comprehensive theory of evolution that integrated…
LAB #1 (LAB #2 #3 below) Equipment: Kinematics Cart 2 500g bar masses Kinematics Track 50g hanger Several 100g masses String Pulley iBook Computer USB Cable Motion sensor Purpose: How will the acceleration of an object’s mass (m) change when the net force acting on it changes? Prediction: We predict that the acceleration of an…
What is Health? -Health is a state of complete physical, mental, and social well-being and not merely the —- absence of disease or infirmity -Heath is therefore seen as a resource for everyday life…health is a positive concept emphasizing social and personal resource as well as physical capabilities What is Wellness? -An expanded idea of…
Introduction In this lab, double replacement reactions between compounds were done in order to determine the equation and description of a new substance. During the lab, each participant was given drop bottles, spot plates. The drop bottles contained different compounds which were dropped into the spot plates and mixed together. Compounds were combined together and…
Metabolism is the combined sum of the chemical reactions that occur in living organisms. Metabolism is traditionally divided into catabolism, or the breaking down of large molecules into smaller ones, and anabolism, or the combining of small molecules to make larger ones. Metabolic pathways are coordinated series of reactions, catalyzed by enzymes and designed to…
Living organisms carry out a diverse set of tasks, such as building and maintaining physical structures, moving, synthesizing macromolecules, maintaining electrochemical gradients, and maintaining a constant body temperature. All of these processes require energy. One fundamental problem living organisms face is how to obtain energy to carry out these tasks. When considered at their most…
All cells are enclosed by a membrane composed of lipids, proteins and carbohydrates. Eucaryotic cells also have internal membranes that divide the cell into different compartments. Biological membranes have several important functions, including: They separate the contents of a cell or organelle from the surrounding environment. They control import and export of molecules (e.g., nutrients,…
As more carbons are added to a carboxylic acid, the trend indicates that the boiling point increases. The main functional group in a carboxylic acid (COOH) leads to strong bonds to start off with. The functional group (COOH) comes from combines the forces of a carbonyl group (polar covalent bonds, London forces, and dipole dipole…
– force is defined by the interaction between separate objects- force and magnitude – physics is primarily concerned with the object on which a force acts Laws of Mechanics 1. an object is in mechanical equilibrium if the forces that act on the object are balances, resulting in no change of its velocity 2. if…
Problem: How can an experiment be designed to measure the change in gravitational potential energy and the change in kinetic energy as an object rolls down a ramp? Predictions: Chemical energy is used by the body to lift the car 10 centimeters up onto the top of the ramp. When the energy is not being…
Abstract Carduelis tristis (American goldfinch) is a bird that suffers from a great risk of predation and in some areas is found to select a smaller clutch size of 3-6 eggs rather than a larger clutch of 7 or more eggs. The purpose of the experiment was to determine whether the risk of predation has…
Organelle Structure Function Nucleus -classified as eukaryotic or prokaryotic depending on whether or not it has a membrane bound-Heredity or genetic information is organized into threadlike structures called chromosomes.-contains DNA-composed of nucleic acids and proteins – control centre of the cell – directs all cell activity-directs other cell activities. Cell Membrane -composed of proteins and…
Nuclear power has been a topic of discussion for many decades. Many antinuclear lobbyists are against the use of nuclear power, while a lot of politicians believe that it will be one of the main sources of energy in the future. Dalton McGuinty, who while running for the position of premiere of Ontario, used in…
In the world many people take the gift of hearing for granted because they have never experienced anything else. What people do not realize is that many people have very weak or no hearing at all. With the invention of the hearing aid, the gift of sound has been shared with many of these people…
Cars have many devices to help them accelerate and reach a certain velocity, but slowing down the automobile is a very important function to achieve as well. Two ways cars are able to slow down their velocity is through the ability of the transmission to downshift and the brakes using friction to make the wheels…
With environmentalists constantly searching for a safer insecticide to deal with those pesky mosquitoes, naled has often been the choice for many. Having been registered for use since 1959 in the United States, about one million pounds of the organophosphate pesticide have been used every year with seventy percent used towards mosquito control. Primarily produced…