Unitary and Modular Organisms: Their Response to Environmental Changes and Perturbation1 Casey Jon Vea Group 3 Section U-2L August 3‚ 2011 ------------------------------------------------- 1A scientific paper submitted in partial fulfillment of the requirements in Biology 150‚ Principles of Ecology laboratory under Mrs. Charina Grace B. Banaay ‚ Ist semester 2011-2012 Abstract Every individuals or organisms dwell in a place where well suited for their growth and development‚ survival and reproduction
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Chapter 1 ELO’s Describe the basic functions of living organisms. A. Responsiveness – organisms respond to changes in their immediate environment (long term changes is adaptability) B. Growth – over a lifetime‚ organisms grow larger through an increase in size or number of cells. Differentiation is when cells have specialized functions C. Reproduction – Organisms reproduce‚ creating subsequent generations of similar organisms D. Movement – Organisms are capable of movement
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APPROVED ACADEMIC SESSION: 2011/2012 Campus MEDWAY School School of Science Level Four Date May 2012 COURSE CODE BIOL1002 COURSE TITLE FUNDAMENTAL BIOLOGY AND PHYSIOLOGY Duration 2 Hours ___________________________________________________________________________ INSTRUCTIONS TO CANDIDATES SECTION A Answer ALL the multiple choice questions on the answer sheet provided. Each question carries one mark (50 questions). SECTION B Answer TWO questions. Each question carries 25 marks.
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Plasmolysis in Rhubarb Epidermis Cells Aim: To see if rhubarb changes when it is placed in solutions of different concentrations. Introduction: "Plasmolysis in Rhubarb Epidermis Cells" is an experiment to see whether or not rhubarb changed its cell structure when placed within different types or solutions. "A single layer of plant cell is placed on a micrscope slide and either distilled water or 5% NaCl solution is added to the cells. Osmosis will occur resulting in either turgid cells or
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The Epidermis is a thin outer layer of the skin and it’s made out of Stratified Squamous Epithelium tissue.This thin layer it contains different cells that it gives the different functions.The majority of the cells in the Epidermis are Keratinocytes which they produce Keratin and it stiffens the epidermal tissue which it also forms the fingernails. Another type of
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distinct regions‚ the superficial epidermis and a deep dermis. The superficialepidermis is nonvascular and lined by keratinized stratified squamous epithelium with distinct cell types and cell layers. Inferior to the epidermis is the vascular dermis‚ which is characterized by dense irregular connective tissue. Beneath the dermis is the hypodermis‚ or the subcutaneous layer of connective tissue and adipose tissue that forms the fascia seen in gross anatomy. EPIDERMIS: Thick Versus Thin Skin The basic
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stomata in the upper and lower epidermis of a dicotyledonous leaf. Stomata are the principle means of gas exchange in plants. Stomata are small pores they are controlled by guard cells which control the opening and closing of stomata. Stomata allow carbon dioxide to enter the plant‚ and allow water and excess oxygen to escape. About 90% of water is lost from the leaf during transpiration. The number of stomata on leaf surface varies among different species. The lower epidermis tends to have the most number
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Maintain proper temperature Gather sensory information Vitamin D production Three Main Layers of the Skin 1. Epidermis 2. Dermis 3. Subcutaneous Tissue Epidermis Outermost layer Continuously being renewed Thicker in some places (like the thick soles of your feet and on your palms) than in other places of the body (like the thin skin over your eyelids). The epidermis on a person’s fingertips forms ridges. Each person’s ridge pattern is unique so that no one has the exact same fingerprints
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Antimicrobial Activity of Cilantro on Staphylococcus Epidermis and Escherichia coli Abstract Antimicrobial effects of cilantro against the gram positive bacteria S. epidermis and the gram negative bacteria E. coli were looked at. We predicted that cilantro would act as an antibiotic against S. epidermis but not to E. coli because S. epidermis does not contain an outer membrane whereas E coli. does. We predicted that the semi-permeable outer membrane of E. coli would protect the bacteria from
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The skin consists of an outer‚ protective layer (epidermis) and an inner‚ living layer (dermis). The top layer of the epidermis is composed of dead cells containing keratin‚ the horny protein that also makes up hair and nails. The skin is made up of two layers‚ the epidermis and the dermis. The epidermis‚ the upper or outer layer of the skin‚ is a tough‚ waterproof‚ protective layer. The dermis‚ or inner layer‚ is thicker than the epidermis and gives the skin its strength and elasticity. The
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