of phagocytosis was affected by the change in conditions. Comparing the two environments‚ we found that indeed the rate of Phagocytosis was affected by a change in environmental conditions. Introduction Tetrahymeha Vorax consist of freshwater protists that usually are oval shaped if not almost egg shaped. This organism belongs to a specific group known as the ciliates (Cambell). They use specialized feeding structures such as the Buccal Cavity to ingest their food into their oral cavity (Shefferly
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Preserve the Forests In agreement with Kim Stafford‚ who opposes the clear-cutting of old growth forests‚ I feel that it is necessary to preserve the profitable lumber in its natural state for future generations. Currently‚ the tons of lumber produced from the Pacific Northwest region of the United States are taken for granted‚ and most people do not realize that the forests will be destroyed within ten years at this rate of exploiting our natural resources. We must make loggers a profession
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O‚ N‚ H 4. Draw the periodic square for Helium. How many valence electrons does it have? How do you figure this out using the periodic table? Two valence e-‚ 23He‚ all the way right full shell only holds two electrons 5. What is an isotope? How are they used? Different number of neutrons‚ used in biological research (radioactive) 6. Describe the 4 main types of bonds. Put them in order from strongest to weakest. Covalent-electrons are shared between the atoms‚ can be polar or nonpolar depending
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The uses of forests | | Forests and the many varying trees of which they are composed have‚ since the very earliest days played an important part in the life of mankind. It is because of this that men have realized their value and have taken steps to preserve them and to prevent their wanton and useless destruction.From the primitive days of the wigman‚ the house on stilts or the African but‚ wood has been the basic material used for men’s housing to provide shelter from the animals. The wigwam
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Bio 101 Chapter 1 Review Questions 1. What do biologists study? What are some properties of life? 2. What is bigger the biosphere or an ecosystem? A community or a population? An organism or an organ system? A cell or a molecule? 3. Do organisms interact with their environment? If so‚ give an example. What are two major processes in the dynamics of an
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Lost So there I stood‚ no clue about my surroundings in a place I had never been before. Being in a forest all alone with nothing but a barely sharp pocket knife is a bad place to be but I had no choice in the matter‚ I was lost. I knew the first thing I had to do would be to build some kind of a shelter‚ something to keep me out of the weather and safe from any animals wanting to eat me. Next‚ I would need to find a food source abundant enough to last until I could be found. So I set out to find
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Question One Children learn best by observing the behaviour of adults and copying it. Do you agree or disagree? Use specific reasons and examples to support your answer. To gain new experiences and transforming the existing information is the one of the process of learning. It’s easy to carry for the children to learn because it’s obtained from the parents due to repeated observational learning. Children will appreciate what their parents did without judging them because they are the best role
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Purpose: To find how pH and temperature levels affect the enzyme Background: Enzymes are a type of protein vital to sustaining life‚ it works with vitamins and minerals as a biological catalyst‚ which lowers the activation energy for a reaction to occur. Each individual type of enzyme does a specific job‚ and they do not die‚ they are reused. For example‚ catalase is an enzyme found in almost all living cells that will break down hydrogen peroxide and turn it into water and oxygen. The
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Hydrothermal Vents and its Organisms! A hydrothermal vent is a fissure in a planet’s surface from which geothermally heated water issues. Hydrothermal vents are commonly found near volcanically active places‚ areas where tectonic plates are moving apart‚ ocean basins‚ an hotspots Hydrothermal vents exist because the earth is both geologically active and has large amounts of water on its surface and within its crust. Common land types include hot springs‚ fumaroles and geysers. Under the sea
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Bonnie Kalka Mark MacDowell PHL-103 December 4‚ 2012 Organ Transplantation The history of transplantation is an epic journey describing the medical community’s need to understand how the human body works and how you can ultimately defy illness and death. The most important component is the generosity of organ and tissue donors‚ and the courage of those whom receive the transplant. Transplantation goes back many Centuries‚ in the 9th Century BC Ancient folklore in most cultures describe
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