Noise Noise pollution is excessive‚ displeasing human‚ animal‚ or machine-created environmental noise that disrupts the activity or balance of human or animal life. The word noise may be from the Latin word nauseas‚ which means disgust or discomfort.[1] The source of most outdoor noise worldwide is mainly construction and transportation systems‚ including motor vehicle noise‚ aircraft noise‚ and rail noise.[2][3] Poor urban planning may give rise to noise pollution‚ since side-by-side industrial
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BIOLOGY IA A Factor That Will Affect Enzyme Activity The Question Effects on Enzyme activity: investigating the effects of mixing Hydrogen Peroxide with Catalase extracted from potatoes at different temperatures‚ and then comparing the results with the same method‚ except to replace the Potato juice with MnO2 Hypothesis Since enzymes are a type of protein‚ they will be destroyed at high temperatures and activity rates will go down at low temperatures. Also‚ if done at low temperature
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"Clark.... Delacroix" "There goes my old man." Mrs. Delacroix said. She held her breath while her husband went forward. "Dunbar‚" Mr. Summers said‚ and Mrs. Dunbar went steadily to the box while one of the women said. "Go on. Janey‚" and another said‚ "There she goes." "We’re next." Mrs. Graves said. She watched while Mr. Graves came around from the side of the box‚ greeted Mr. Summers gravely and selected a slip of paper from the box. By now‚ all through the crowd there were men holding
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There are many methods people can use to reduce plastic pollution. They can reduce‚ reuse‚ and recycle. This is the oldest method that is effective if done correctly. They can buy recyclable products with little or no packaging. Buying these products will reduce the use of plastic and will reduce recycling needs which will lead to a cleaner Earth. They can also use biodegradable plastics so we don’t have to worry so much about plastic pollution. Keeping storm drains clean and never littering will
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Syeda Fatima Sinusitis What are sinuses? Sinuses are basically hollow spaces in the bones behind the face Sinuses are developed even before a person is born and sometimes continue to develop until the age of 20. There are four pairs of sinuses or eight all together. Sinuses are located on either side of the nose in our cheeks‚ behind the eyes and between them‚ in our forehead‚ and at the back of the nasal cavity. The nasal cavity is basically the inside of the nose. The nasal cavity is lined
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Archasea Bacteria Luca Last Universal Common Ancestor Lucas Characheristics deduce form shared characteristics of A + B today: DNA (cf. RNA) genome No nuclear membrane or intracellular organelles Electron Transport Chains (ETC)- ATP (energy) Proteins Same genetic code Prokaryontes 2.75 bya‚ are responsible for a dramatic increase in atmospheric O2. Cyanobacteria = photosynthesizing bacteria + related prokaryontes Evidence of O2 increase: Rust in rock
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Cell Biology Lab - Homework 1 Due to the week of Oct. 6-10th This is NOT a lab group project. Do the work individually. You may use any source other than your fellow students. Show your work‚ use your own words and cite all references. 1. (20 points) The HeLa S3 cancer cell line is considered to be “continuous” due to acquired mutations that enable the cells to evade senescence. This property is one of several hallmark characteristics of cancer cell lines. Describe three hallmark characteristics
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Phylum Porifera  Basic Characteristics No definine symmetry Bodies are multicellular‚ with few tissue and no organs. The cells and tissues surround a water filled space but there is no body cavity. Has no nervous system Has a larval stage. Are all filter feeders. Sponges are among the oldest animals‚ being discovered about 500 million years ago! Phylum Cnidaria JellyFish  Basic Characteristics Live in both fresh water‚ and salt water. Radial Symmetry; typically quadramous
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Question 1 1 out of 1 points Identify the cell membrane within the plant cell figure: Plant Cell_Exam 1.png Selected Answer: A Correct Answer: A Question 2 1 out of 1 points The activation energy required for a catalyzed reaction is ___________ compared to an uncatalyzed reaction. Selected Answer: D. lower. Correct Answer: C. lower. Question 3 1 out of 1 points Identify the cell wall within the plant cell figure: Plant Cell_Exam 1.png Selected Answer: D
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LIVING THINGS * All living things come from other living things. * Ex: One single celled organism to another * DNA is copied & passed to offspring * The signature molecule of life * Ex: embryo- cells continually divide & develop EVOLUTION * Why do some organisms seem suited for their environment * Ex: Hummingbird- long beak for nectar in certain flowers * Ex: Cheetahs- take down faster prey * Adaptation- inherited characteristic that
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