CONTENTS HKCEE Biology Long Questions SECTION 1 THE CELL 1 The cell and its activities P1-11 SECTION 2 ORGANISMS AND THEIR ENVIRONMENT 2.1 Diversity of organisms P12-16 2.2 Ecosystem P17-23 2.3 Human impacts on the environment P24-33 SECTION 3 ENERGETICS 3.1 Photosynthesis P34-40 3.2 Respiration P41-46 SECTION 4 OBTAINING ESSENTIALS FOR LIFE 4.1 Nutrition and gas exchange in plants P47-51 4.2 Water relation and transport in plants P52-64
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expressed. Recessive genes for a trait are only expressed if you inherit TWO of them (one from each parent). © 2013 John Wiley & Sons‚ Inc. All rights reserved. Traits that are controlled by multiple genes and often are affected by environmental and social factors. Methods for Studying Heritability Twin Studies Monozygotic (identical) twins share 100 percent of their genes. Dizygotic (fraternal) twins share 50 percent of their genes. And‚ often‚ the twins are raised in the same environment.
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a Bio 20 Final Review SA Phylum | Example | Characteristics | /36 | | | Porifera | Glass Sponge | No true tissue‚ use collar cells No movement as adult | Cnidaria | Jellyfish | Polyp or Medusa Nerve net | Platyhelminthes | Fluke | Nerve cells that act as a brain Live in bodies | Nematoda | Hookworm | Taper at both ends False coelom‚ parasitic | Annelida | Earthworm or Leech | Segmentation Hydro skeleton | Mollusca | Octopus or Clam | Mantle‚
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Using an integrated bio-psychosocial approach discuss how stress can affect health‚ well-being and the maintenance of homeostasis. Word count 1‚894 This essay will discuss the effects and implications of stress on health‚ wellbeing and the maintenance of homeostasis using a bio-psychosocial approach. To do this‚ it will focus on the biological‚ psychological and sociological aspects separately with health‚ wellbeing and homeostasis effects running all the way through and attempt to link
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week of Nov. 4th You may use the lab manual‚ pre-lab lectures‚ and credible internet resources‚ however you may not use your cell bio lab classmates as a resource. You will most likely see this material again on the Final and I highly encourage you to work individually and seek help from myself or your TA. Plagiarism will result in an automatic zero. 1. In the cell bio lab‚ we use company manufactured gels‚ however you can make you own polyacrylamide gels. List all of the ingredients found in
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In the BIO 14 Lab‚ the organismal system used for the last of three labs this semester is the Mimosa pudica plant. In these three weeks the stimulus-response of these plants will used to conduct experiments on the phenotypic plasticity of Mimosa pudica. Phenotypic plasticity is the ability of an organism to change its phenotypic traits in response to changes in the environment. And while very beneficial in some ways such as by allowing organisms to adapt to a changing environment quickly‚ it also
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many possible risks over domestic marketing. In Canada‚ the two main risks are governmental regulations and currency fluctuations. • Government regulations: There are two areas of concern‚ importation restrictions and solid waste restrictions. The Bio-Butler uses two non-toxic household chemicals in the production of the liner‚ dried lemon juice and sodium bicarbonate. Neither one currently cause any importation problems. Since there are no national standards‚ local governments decide the solid
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Bio Med. 5.1.1 What is Cholesterol? Unsaturated fat: fat or fatty acid in which there is at least one double bond within the fatty acid chain. Saturated fat: Fat that consists of triglycerides containing only saturated fatty acid radicals Trans fat: the common name for unsaturated fat with trans-isomer fatty acid Cholesterol: A compound of the sterol type‚ found in most body tissues and important in metabolism All these things go together because they affect the cholesterol blood
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Exam 2 bio 226 1. Endocrine Gland = is a ductless gland that releases its secretions directly into the bloodstream Exocrine realeses into ducts 2.sweat tastes salty because it contains dissolved body salts and minerals known as electrolytes. 3.Fingernails are a modification of the epidermis. 4. The dermis is a strong‚ flexible connective tissue layer. Which of the following cell types are likely to be found in the dermis? fibroblasts‚ macrophages‚ and mast cells 5. Keratinocytes
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Process of Photosynthesis Shawanda D. Robinson BIO 204 Plant Physiology Monday‚ January 26‚ 2015 Brandy McFadden Process of Photosynthesis We all learned in elementary school that the suns provide nutrients and components that help plans grow. “As the name implies‚ photosynthesis is a process that uses light energy to synthesize something.” (Mauseth‚ 2014) That process is called photosynthesis. Photosynthesis is the process where plants use light energy from the sun. If we
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