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    biology

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    Animal Diversity The number of animal varieties familiar to us is vast as the animal world is diverse. Each distinct variety or type of animals is recognized by scientist as a species. Animals of most species are free-living forms but of others are parasitic in bodies of other animals or even plants.  According to their habitats animals are divided into the following types     Aquatic animals :- They live in water . Animals living in sea water are called marine & those live in river‚ponds‚streams

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    Chapter 1 Reading and Study Guide Why This Chapter Matters 1. We are living in the golden age of biology. Biological discoveries revolutionize medicine‚ change agriculture‚ and impact human culture. 2. Life is united not by a single trait‚ but by a common set of characteristics. Appreciating what it means to be living is as complex as life itself. 3. Life exists at many levels of biological organization. Understanding how these levels interrelate provides insight into the mechanisms of living systems

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    Biology

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    the same time form communities. The community forms the living‚ or biotic part of the ecosystem. Energy‚ Minerals‚ Nutrients and water from the non-living or abiotic components. 1. Inorganic substances (C‚N‚CO2‚H20 etc) incolved in material cycles. 2. Organic compounds (Proteins‚ Carbohydrates‚ lipids‚ humic substances etc.) that link biotic and abiotic. 3. Climate regime (temperature and other physical factors) 4. Producers‚ Autotrophic organisms‚ largely green plantswhich are able to manufacture

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    biology

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    1. Qualitative analysis – where a sample is analyzed to determine whether a biomolecule is present or absent. As an example‚ a blood sample might be analyzed for a specific antibody or a bacterial cell might be probed for a nucleic acid sequence. 2. Quantitative analysis – where the quantity of a particular biomolecule in a sample is determined‚ either as an amount (e.g. as g‚ or mol) or in terms of a concentration in the sample (e.g. as g/l‚ or mol/l). For example‚ a blood sample might be analyzed

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    I. Introduction Campbell’s was founded in 1869 by Joseph A. Campbell and Abraham Anderson. The company was originally called the “Joseph A. Campbell Preserve Company” and produced canned tomatoes‚ vegetables‚ jellies‚ soups‚ condiments and minced meats. By 1896‚ Anderson left the partnership‚ leaving Campbell to reorganize and form a new company‚ Joseph Campbell & Co. In 1897‚ Dr. John T. Dorrance‚ began working for the company. Dorrance3‚ a gifted chemist with degrees from MIT and Göttingen

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    Biology

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    people. Read the passages on thalidomide from the Internet and answer the questions that follow. 1 Thalidomide is a drug which was sold during the 1950s[->0] and 1960s[->1] as a sleeping aid and given to pregnant women to combat morning sickness[->2] and other symptoms. It was made in West Germany[->3] in 1953[->4]. It was available in around 50 countries‚ although not in the United States[->5]‚ under at least 40 different names. 5 It was later (1960–61) found to cause severe physical abnormalities

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    pattern of bands with DNA from different individuals • used for criminal investigations / example of use in criminal investigation • used to check paternity / who is the father / mother / parent • used to check whether two organisms are clones 2. Discuss whether genetic screening should be carried out for sickle cell‚anemia and other diseases. 4 marks. 3. Discuss the advantages and disadvantages of genetic screening. 8 marks. Genetic testing can cause either a feeling of relief or

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    Representation Electron Micrograph 8.2.2 State that photosynthesis consists of the light-dependent and light-independent reactions Photosynthesis is a two-step process: 1. The light dependent reactions convert the light energy into chemical energy 2. The light independent reaction uses the chemical energy to make organic molecules Overview of Photosynthesis 8.2.3 Explain the light dependent reactions The light dependent reactions occur on the thylakoid membrane and may occur by either cyclic

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    biology

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    birds are true endotherms that can maintain a constant internal body temperature b. ectotherm Ectotherms are animals that are not able to regulate their body temperature or in simple words‚ they cannot maintain a constant internal body temperature. 2. From the graph‚ a. Which animals could be described as true endotherms? Explain From the graph we can see that cat‚ human and platypus are true endotherms. It is because cat‚ human‚ platypus are maintaining a constant internal body temperature. Looking

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    100 Chapter 2 Study Guide

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    1. This is a social position that is acquired at birth or taken on involuntarily later in life. A) role B) status C) ascribed status D) achieved status 2. This is a social position taken on voluntarily or acquired through effort. A) role B) status C) ascribed status D) achieved status 3. These are enduring patterns of expectations for how basic social needs will be addressed. A) group B) organization C) institution D) society 4. These often have a hierarchical division of labor. A) group B)

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