oxygen increases so does the number of fish observed. However‚ when the dissolved oxygen reaches 14 ppm the number of fish decreases to 10. So‚ 6ppm and 14ppm‚ 8ppm and 16ppm‚ and finally 10ppm and 18ppm‚ have a similar number of fish observed. 2. Develop a hypothesis relating to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water. If the amount of dissolved oxygen is increased‚ then the number of fish observed will increase. 3
Premium Hypothesis Experiment Scientific method
TITLE: Wad a Watershed Lab INTRODUCTION: Using models is very important in science. In this lab‚ you will design a model that will help you investigate the relationship between land surfaces and water on Earth. OBJECTIVE: To design a model that will help you visualize watershed characteristics. PROBLEM: How can we use the relationships between land surfaces and water to understand conservation of resources and pollution? HYPOTHESIS: In your own words‚ write a hypothesis about how the relationships
Premium Water Scientific method Paper
prey is reduced when the prey are at low densities c. the per capita feeding rate of predators is reduced when their density is high d. the per capita feeding rate of predators is reduced when their density is low e. none of the above Question 2. A copepod species (the predator‚ measured in copepods/m3 of water) feeds on algae (measured in cells/m3 of water) in freshwater lakes. Assume that the interaction is well-represented by the Lotka-Volterra predator prey model: where r = 1/week
Premium Predation
Exp 23 B Synthesis of t-Pentyl Chloride 11-8-12 Purpose: The sysnthesis of t-Pentyl Chloride from alcohol. Procedure: Preparation of t-Pentyl Chloride. In a 125-mL separatory funnel‚ place 10.0 mL of t-pentyl alcohol (2-methyl-2-butanol‚ MW _ 88.2‚ d _ 0.805 g/mL) and 25 mL of concentrated hydrochloric acid (d _ 1.18 g/mL). Do not stopper the funnel. Gently swirl the mixture in the separatory funnel for about 1 minute. After this period of swirling‚ stopper the separatory funnel and
Premium Hydrochloric acid Sodium bicarbonate Laboratory glassware
What is Magnesium chloride(MgCl2)? What is it used for and why? What does it look like? Magnesium chloride is the name of a chemical formula of MG CL two. This is a salt and they are a typical ion halide. halides are very soluble to water. magnesium chloride is used for deicing on highways in sidewalks and also parking lots it is a good source of de-icing. The color that it appears is white or colorless crystalline solid. What is magnesium or what is chloride? whare are they located? You can find
Premium Chemistry Chlorine Chemical reaction
Blake Padgett TA: Christine Hartman 9/4/2014 Fillers within Protein Supplements Local gym enthusiasts are trying to reveal if certain new dietary supplements will actually help them gain muscle mass by providing high levels of protein. Before the users consume the new supplements they want to know if they are indeed true protein supplements or if the manufacturer used fillers as a mean to make more profit. “Do the new supplements contain fillers such as sugar and starch or are they
Premium Protein Nutrition Amino acid
Preparation of t-Butyl-Chloride March 8 & 15‚ 2012 Theory: Alkyl halides can be synthesized when alcohols react with hydrogen halides. An alkyl halide is a halogen-substituted alkane‚ and a hydrogen halide is a compound consisting of a hydrogen bonded to a halogen (H-X). Alkyl halides are classified as primary‚ secondary‚ or tertiary depending on the number of alkyl substituents directly attached to the carbon bearing the halogen atom. The purpose of this laboratory experiment was to prepare
Premium Sodium chloride Hydrochloric acid Chlorine
Iker Lopez Anatomy & Physiology P2 Wednesday‚ September 19‚ 2012 Heart Rate Response to Baroreceptor Feedback Lab Fundamental Question: Does the body respond to its environment? Testable Question: When the body is in the squat position to normal while the time limit stays the same and how far you squat is the same‚ will the heart rate recover after returning to standing position in 10 seconds? Hypothesis: If the body moves back to normal position from squatting position while the time limit
Premium Feedback Heart rate Negative feedback
Introduction/Lab Description This lab is meant as an introduction to properly instructing individual stretches. (40 points) Objectives 1. Identify the joint movements and muscles being stretched during a variety of stretches. 2. Describe and demonstrate proper technique (e.g. range of motion‚ body positioning‚) for a variety of generally safe and effective stretches to enhance flexibility. 3. Demonstrate the ability to teach common stretches using proper directions‚ cueing‚ and
Premium Human anatomy Flexion Extension
emulsified grease or oil amount in the water samples by utilizing from the partition-gravimetric method. Introduction: Oil and grease is an important parameter for water quality and safety. Regulatory bodies worldwide set limits in order to control the amount oil and grease entering thewater reservoirs or the sea through industrial discharges and also limit the amount present in drinking water. The partition – gravimetric method involves extraction of dissolved or emulsified oiland grease from water
Premium Water Solvent Petroleum