Midterm Study Guide Answers 1. A hypothesis is an explanation of observations. “If the floor is wet‚ I will slip.” 2. A controlled experiment is when only one variable is changed. 3. If the plant you are experimenting with has a disease that is an unavoidable experimental error. 4. An enzyme speeds up reactions and lowers the energy it takes to produce something‚ a lock and key. 5. Autotrophs make their own food by producing sugars from sunlight and various chemicals. 6
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Andrew Schwartz 1-19-2011 Assignment 1 * Fish- Channel Catfish‚ May 23‚ 1997. It is slender‚ with a deeply forked tail. The young have spots that fade away with age. It feeds on animal and plant material by using it’s whiskers. * Fossil- Crinoid‚ June 16‚ 1989. It is the mineralization of an animal which has a plant-like appearance‚ so it is known as the “sea lily.” * Mineral- Galena‚ July 21‚ 1967. It is the major source of lead ore. It is dark gray in color and breaks into small
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1. Phospholipid: Molecule that forms a double-layered cell membrane; consists of a glycerol‚ a phosphate group; and two fatty acids. 2. Selectively permeable (Semi): Condition or quality of allowing some‚ but not all‚ materials cross a barrier or membrane. 3. Receptor: Protein that detects a signal molecule and performs an action in response. 4. Diffusion: Movement of dissolved molecules in a fluid or gas from a region of higher concentration to a region of lower concentration. 5. Osmosis: Diffusion
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A. Fermentation Lab- The basic process Prepared 3 beakers with contents listed below. ( a. Beaker 1: glucose only b. Beaker 2: Starch only c. Beaker 3: Starch + amylase). Poured contents of each beaker into its respective fermentation tube‚ ensuring the tail portion of the tube was filled with liquid. Placed tubes in an incubator at 37 degrees‚ measuring distance between tip of tube tail to fluid level at 20‚ 40‚ and 60 minute intervals. Calculated gas volume using this distance along with radius
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5PY017 Pharmaceutical Microbiology Evaluation of antimicrobial effectiveness of disinfectants Abstract A control experiment was performed to rule out the effects of the medium and neutralizer to allow us to see the effect of the disinfectant on the four organisms within a 5 minute range. The bacterial suspension used for paired at different concentration data was Staphylococcus Aureus for which gave good results when the reduction factor value of 1.20x106 ml-1 was obtained for the organism
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ambient air temperature outside. This project will explore if it will be feasible to take advantage of this constant cool ground temperature and use it as part of a low-energy compressor-less air conditioner. To test this‚ a scaled down mock-up heat exchanger with a fan will be built to absorb the heat from room air and transfer that heat to a coolant liquid. This liquid will be pumped into a water cooler that simulates underground temperature where the heat will be transferred to the
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NFJPIA MOCK BOARD2014 AUDITING PROBLEMS Use the following information for the next two items GIL Company’s December 31 year-end financial statements contained the following errors December 31‚ 2013 December 31‚ 2014 Ending inventory P91‚000 overstated P61‚000 understated Accounts payable P54‚000 understated P62‚000 overstated Depreciation expense P23‚000 understated - An insurance premium covering years 2013‚ 2014 and 2015 amounting to P135‚000 was prepaid and expensed in full in 2013. Increase
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Write your name here Surname Other names Centre Number Candidate Number Edexcel GCSE Physical Education Unit 1: The Theory of Physical Education Tuesday 24 May 2011 – Afternoon Time: 1 hour 30 minutes You do not need any other materials. Paper Reference 5PE01/01 Total Marks Instructions black ink or ball-point pen. • Use in the boxes at the top of this page with your name‚ • Fill centre number and candidate number. all questions. • Answer the questions in the spaces provided • Answer –
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(M1) Communicable diseases are very contagious and can spread very easily from one person to another person‚ this also includes from animal to person. You can get infected straight away just by touching‚ eating‚ drinking or breathing in a substance that has a lot of germs on it. Communicable diseases are caused by agents such as bacteria‚ parasites‚ protozoa‚ fungus and virus. Bacteria exist on every surface including in the air and below sea level. Most bacteria are harmless but others are harmful
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A cycle is defined as any complete round or series of occurrences that repeats or is repeated in the same order and at the same intervals. The natural existence of cycles is highly important without cycles resources would run out and organisms would die. The amount of carbon nitrogen and oxygen on the earth is fixed‚ they can exists in different forms but no more may be added. So that these don’t run out they are cycles so they may be reused. Photosynthesis and respiration are the reverse of each
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