Suggested answers to Exercise and Reading to learn (Note: The overseas examination boards bear no responsibility for the suggested answers contained in this publication. Answers for HKCEE and HKALE questions are not available due to copyright restrictions. Chapter 3 Regulation of gas content in blood Exercise Multiple-choice questions (p. 77) 1 A 2 D 3 C Short questions (p. 77) 4 a SA node 1m b i To allow the complete emptying of the atria before the ventricles contract. 1m OR
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Biology homework 10.2 1. How are the cells at the end of meiosis different from the cells at the beginning of meiosis? Use the terms chromosome number‚ haploid‚ and diploid in your answer. A: Cells in the begining of meiosis has diploid cells‚ with a full amount of chromosomes. In the end of meisos‚ the four genetically different daughter cells are haploid (gametes)‚ they have half the number of chromosomes. Because of this‚ they are able to fuse with other gametes (ex. egg and sperm) to form
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Prokaryotic cells vs. Eukaryotic cells Two Fundamentally Different Classes of Cells charcteristic Prokaryotic Cells Eukaryotic Cells word origins pro=before karyon=kernel or nucleus eu=true karyon=kernel or nucleus Domains of Bacteria 1. archaea or archaebacteria‚ more ancient in soil and water also in hostile environments‚ many without oxygen high salt/brine methanogens halophiles thermoacidophiles hot acidic springs 2. bacteria or eubacteria‚ more
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Joseph Wakile Math 110-04 December 12‚ 2014 Final Paper Height vs. Shoe Size I chose two quantitate variables in this study in order to see if they had any linear relationship. The dependent (response) variable was a person’s shoe size in united states meaurements and the independent (explanatory) variable was person’s height in inches. I chose these two variables because I assume before the study that there would be appositive linear relationship between height and shoe size. In other words‚ the
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Endocrine System. 2. Explain the mechanism of communication‚ control‚ and integration in the endocrine system. The Endocrine systems mechanism of communication is sending messages from the cells of the endocrine and nervous system to the cells in other systems by releasing hormones. The Endocrine systems control feature is part of negative feedback because it regulates body functions in order to maintain homeostasis. The communication and control function of the Endocrine System are key parts
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locomotion and other body movement. 3) Organ systems contribute to the maintenance of the internal environment by maintaining the relatively constant composition and condition of the blood and tissue fluids in order to ensure that cells will function normally. One example is the cardiovascular system; without the system‚ no blood would be distributed throughout the body and we wouldn’t be able to live. Chapter 29.2: 1) The regulatory system would be the individual who
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environment and are one of the top predators in their habitat. There are several characteristics including physical and habitual features that help wood stork survive in their habitat. Name The scientific name of the wood stork is Mycteria Americana (Bio Facts: Wood Stork). Wood storks’ offspring are commonly
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statements about evolution is true? 3) 4) Life is organized in a hierarchical fashion. Which of the following sequences correctly lists that hierarchy from least inclusive to most inclusive? 4) 5) What is the difference between a tissue and an organ system? 5) 6) If you eat a hamburger‚ you are mainly eating ground-up beef muscle. What levels of organization are represented in this ground-up muscle? 6) 7) Kingdom Fungi includes species 7) under Eukarya‚ decompose dead organisms‚ obtain nutrients
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AP Bio Lab Report Osmosis and Diffusion Introduction When a substance is released into an area‚ the random movement of its molecules results in a multitude of collisions. These collisions‚ in turn‚ lead to a dispersion of the molecules. The overall movement of the molecules will be from an area of high concentration‚ where there will be more collisions‚ to areas of low concentration‚ where the number of collisions will be much less. This process of dispersion will continue until there is no
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4 Overview • Syllabus & course expectations • Ch. 1: Science and the Environment – The State of the Planet – Environmental Science • The Environmental Movement – 3 Unifying Themes • Sound science • Sustainability • Stewardship – Moving Toward a Sustainable Future 13 Exercise 1 • Think‚ Pair‚ Share – Think about the topic – Write down your ideas on a sheet of paper • Write your name & date at the top of your paper. Turn it in at the end of lecture. – Break into pairs – Share
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