Danna Vitug September 23‚ 2014 AP Biology – 2 Mrs. Dahle Lab 1: Diffusion & Osmosis 9/16/14-9/19/14; Jessica Bullock‚ Andrew Buchholz‚ Kristamae Masiclat TITLE: Different Ways to Express Diffusion and Osmosis INTRODUCTION: Diffusion is the spontaneous movement of a substance down its concentration gradient‚ from a region where it is more concentrated to a region where it is less concentrated. Osmosis is the diffusion of water across a selectively permeable membrane. The objective of
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iffany Goff Margaret Jenkins General psychology 7/11/04 Structures of the eye and ear We use our ears for the hearing sense‚ and we use our eyes for vision. Both are very important senses and would be hard to get along without. We rely on hearing for communication‚ navigation‚ entertainment and many other purposes Now for our eyes we use them for vision‚ their like our own personal camera’s‚ both have and use lens to focus on images.
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Learning Objectives for Chapter 1 AN INTRODUCTION TO THE HUMAN BODY Education is for improving the lives of others and for leaving your community and world better than you found it. Marian Wright Edelman Define anatomy and physiology. -anatomy is the science of the structure and relationship of the structures. -physiology is the science of body functions (dhow it works) Describe the six levels of structural organization and give examples of each. Chemical - atoms and molecules Cellular - molecules
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Unit One: Diversity – Study Notes Classification Classification Taxonomy * Seven taxa (King Philip Came On Family’s Gold Spaceship): 1. Kingdom (animalia) 2. Phylum (chordate) 3. Class (mammalia) 4. Order (primates) 5. Family (hominidae) 6. Genus (homo) 7. Species (sapiens) * Three domains: 8. Domain Bacteria 9. Domain Archaea 10. Domain Eukarya * Six Kingdoms: 11. Kingdom Animalia (animals) 12. Kingdom
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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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hair are composed of the protein keratin‚ the same hard protein material that feels the cells of the epidermis. The process of hair formulation is much like the process of growth in the epidermal layer of the skin. 2.Epidermis-Is composed of the stratified squamous epithelium. This type of epithelial tissue consists of flat scale-like cells arranged in overlapping layers or strata. The epidermis does not have a blood supply or any connective tissue so it is dependent for nourishment on the deeper
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