vegetation depletion (Hairston‚ 1960). Furthermore‚ a substantial decline of apex predators can result in a shift from top-down to bottom-up driven ecosystems‚ thus allowing some species (herbivores) to achieve high abundances at a cost to other species (autotrophs) (Wallach‚ 2015). Globally‚ there have been wide-ranging effects of losing apex predators‚ most of which have resulted in species homogeneity and the simplification of food-webs (Bestion‚ 2015; Broderson‚ 2015; Estes‚
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Phytoplankton From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search Diatoms are one of the most common types of phytoplankton. Phytoplankton are the autotrophic component of the plankton community. The name comes from the Greek words φυτόν (phyton)‚ meaning "plant"‚ and πλαγκτός (planktos)‚ meaning "wanderer" or "drifter".[1] Most phytoplankton are too small to be individually seen with the unaided eye. However‚ when present in high enough numbers‚ they may appear as a green discoloration
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Naegleria fowleri The Brain Eating Amoeba Microbiology 204-002 May 4‚ 2010 Microorganisms surround us by the trillions and though few are pathogenic‚ those that are can adversely affect anyone who comes in contact them‚ sometimes to the point of death. Few deaths are as terrifying as the one endured when the parasitic amoeba known as _Naegleria fowleri_ finds its way inside your body and into your brain to feast and multiply. Discovered in Australia in the 1960s‚ _N. fowleri_ has been
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with the presence of sugar at room temperature or in an incubator? | -Observing Cellular respiration in yeast cells. | Yeast Lab Background Information: Yeast is a tiny unicellular fungus that obtains energy from outside sources (a heterotroph) mostly sugars in order to grow and reproduce. Yeast is often used in bread dough to make the dough rise. With the presence of oxygen a yeast cell creates energy by performing cellular respiration and producing a high amount of ATP‚ but when in
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Biology Fieldwork Report Tioman Island Kevin Kam 11W Biology Fieldwork Survey 2013 Date: 15th April – 19th April 2013 (Monday – Friday) Site location: Tioman Island‚ Malaysia Type of habitat surveyed: Located 32km away from the east coast of Peninsular Malaysia‚ Tioman Island is a small island is surrounded by the South China Sea and has a sheer size of 20km long and 11km wide. Tioman Island bears constant humid conditions and hot temperatures due to its close proximity to the equator. The
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of nodules or bumps on the root of the plant. It helps the plant by giving it usable nitrogen and in return the bacteria gets energy from the plant itself. This relationship of two organisms benefiting from each other is called mutualism. Then heterotrophs‚ organisms that consume other organisms for energy‚ eat the plants and take in their nitrogen. When animals urinate they also pass nitrogen back into the soil or water to be re -used. Which substance‚ rhizobium‚ nitrogen (in the form of urea‚
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Microbiology Final Exam Question 1 2 out of 2 points Full induction of the lactose operon requires ________. Question 2 0 out of 2 points The enzymes that help pack DNA into the cell by coiling the DNA into a tight bundle are ________. Question 3 2 out of 2 points Gene regulation can involve a protein repressor that blocks ________ from initiating transcription. Question 4 2 out of 2 points Synthesis of a repressible enzyme is inhibited by ________.
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CHAPTER 6 (SECTION 6.3) Bonding Carbon- 4 bonds attached Oxygen- 2 bonds attached Hydrogen- 1 bond attached Purines vs. Pyrimidines Purines- adenine & guanine Pyrimidines- cytosine‚ thymine (DNA)‚ uracil (RNA) Pentose vs. Hexose sugars Pentose- 5 carbon atoms Hexose- 6 carbon atoms Carbohydrates Empirical Formula CH2O Hydrolysis vs. Condensation Reactions Hydrolysis- using water to break down protein into amino acids Condensation Reaction- nucleotides Enzymes- a protein
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MCB 3020 Exam TWO Study guide 1. List the laws of thermodynamic and describe their relevance in the chemical reactions 2. Define the standard reduction potential. Why aerobic grow generates the highest amount of energy (ATP). How this value plays a role in organization of electron transport system. Compare Eo of aerobic and anaerobic respiration 3. Describe the flow of electron in fermentation and respiration. What happened to the electron in each of the above processes 4
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Lay‚ Janine Group #5 December 4‚ 2012 Experiment 1: Preparation of Culture Media Materials: Erlenmeyer Flasks (2 pcs.) Petri dishes (11 pcs.) Cotton stopper Aluminum foil Masking tape NA powder PDA powder Pentel pen Stirring rod Casserole Electric stove Pressure cooker/ autoclave Steps in Preparation of Culture Media: 1. Calculate the total amount of media needed for the experiment (15ml for plates‚ 5-7 mL for tubes). 2. Weigh the required amount of powder needed to
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