Diversity WORD | DEFINITION | Mitochondria | The part of a cell where cellular respiration occurs | Vacuole | The part of a cell used for storage | Cytoplasm | Fluid found outside the nuclear membrane | Morphology | The branch of bio that deals with the structure or form of organisms | Taxon | A named group of organisms | Phylogenetic tree | Shows the evolutionary differences between different species | Capsid | The outer layer of protein that surrounds the genetic material of
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With the GOP nomination only a few weeks away‚ the competition is getting easier and tougher simultaneously. It is easier in the sense that there are less candidates. From the popular candidates in the beginning that lost their lead to the candidates that never actually had much of a chance‚ there has been a pretty significant decline in the number of candidates‚ and thus‚ competition. It’s easier to compete against a smaller number of people and dedicate resources to that problem than it is to dedicate
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However wastes are excreted directly from their cells since they have constant contact with the external environment. • The greater challenge for simple organisms is maintaining a fluid balance with their external environment • An example is paramecium: o If they are not able to maintain a fluid balance they would continuously absorb water from the environment and eventually burst o To expel excess water‚ these protozoans have contractile vacuoles‚ which pump out water to maintain osmotic balance
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Experiment 1- Title: Observing Bacteria and Blood Purpose: The purpose of this experiment is to learn how to use a compound microscope and an oil immersion lens while observing prepared bacterial slides. Additionally‚ it will be necessary to prepare slides so as to observe bacterial cultures from yogurt as well as to observe the composition of blood (i.e. red blood cells‚ white blood cells‚ and platelets). Procedure: Exercise 1: Viewing Prepared Slides To begin this lab experiment I
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SPECIAL SECTION: MICROBIAL DIVERSITY Rumen microbial ecosystem D. N. Kamra Microbiology Section‚ Centre of Advanced Studies in Animal Nutrition‚ Indian Veterinary Research Institute‚ Izatnagar 243 122‚ India The inhabitants of the rumen microbial eco-system‚ a complex consortium of different microbial groups living in symbiotic relationship with the host‚ act synergistically for the bioconversion of lignocellulosic feeds into volatile fatty acids which serve as a source of energy for the
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molecules Ions Match each organism with the strategy it uses to maintain osmotic balance. Oak tree Surround the cells with a rigid wall that can withstand the pressure that builds up inside the cells dues to the inflow of water by osmosis. Paramecium Use contractile vacuoles to actively pump water out of the cells. Humans Surround the cells with an isotonic extracellular fluid. If 2 solutions have unequal concentrations of solutes‚ the solution with the higher solute concentration is called
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Grade 11 University Biology Exam Teacher: Mr. Anderson SBI 3U1 Jan 21‚ 2009 Time: 2 hours Total Marks /111 Pages 1-8 Name: _________________________ Instructions 1. All questions should be answered on the exam page. 2. There will be no talking and/or other disruptions during the exam. 3. If you have any questions raise your hand and a teacher will come to your desk to help you. 4. When you are finished please raise your hand the teacher will come to you
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Microbiology Lecture Notes: I.Cell1/27/14 1. Robert Hooke 2. Basic unit of structure and function in all living things. a. Unicellular à Microscopic b. Multicellular à Microscopic & Macroscopic c. 2 main cell groups: 1. Eukaryote = True Nucleus 2. Prokaryote= Bacteria (only) a. Karyo = nucleus‚ pro= pre‚ Eu= true 3. Components of a cell: a. Nucleus: brain of cell; has nuclear membrane/envelope 1. DNA à Chromosomes (Genes) à make protein à Macromolecule
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Theories: unifying explanations of the natural world Proximate questions: deal with mechanisms. Don’t always need evolutionary explanations Ultimate questions: concerned with evolutionary origins and functions Induction: inference of general law from observations Hypothesis: possible explanation for observation Carolus Linnaeus: binomial nomenclature Nomenclature: system of rules for naming things Taxonomy: naming and classifying organisms Systematics: theory and practice of classifying organisms
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Paper 1 Section A |Terms with *‚ mark deduction for spelling error. | |Marks | |1 | |D→E→B→C→A |(2) | | | |(1) (1) | | |2 |(a) |During the favourable season more secondary xylem cells are formed and they are larger
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