Write your name here Surname Other names Edexcel International GCSE Centre Number Candidate Number Biology Unit: 4BI0 Science (Double Award) 4SC0 Paper: 1B Monday 9 January 2012 – Morning Time: 2 hours You must have: Ruler Calculator Paper Reference 4BI0/1B 4SC0/1B Total Marks Instructions Use black ink or ball-point pen. Fill in the boxes at the top of this page with your name‚ centre number and candidate number. Answer all questions. Answer the questions in the spaces provided
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similarly explained in his online article on Family Research Council‚ “The zygote is composed of human DNA and other human molecules‚ so its nature is undeniably human and not some other species. . . It is also quite clear to us that the earliest human embryo is biologically alive. It fulfills the four criteria needed to establish biological life: metabolism‚ growth‚ reaction to stimuli‚ and reproduction.” He makes the argument very clear that when the sperm and egg fuse together‚ a new entity that
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Several studies show that music possesses properties that affect the growth rate of plants in different ways. These properties may be the wavelength of the music‚ its frequency or even its tempo. According to a study conducted by Margaret E. Collins and John E. K. Foreman‚ entitled The Effect of Sound on the growth rate of plants (2001)‚ plants growth is directly affected by sounds of varying frequencies. They observed that when plants are exposed to pure tones‚ it affects the growth of the plant
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Commission on Higher Education Cataingan Municipal College Cataingan‚ Masbate PRELIM EXAM Educ.1 Name:_________________________________________ Score:______________ Permit no.:_______________________________________ Schedule:___________ I. Identification: 1. ________________________refers to the changes that are directional‚ leading forward rather than backward. 2. ________________________ is the development or unfolding of traits present in the individual from his hereditary
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Why are pregnant women always complaining? The simple answer is that a pregnant woman’s body is always changing. When this is said‚ many think of the physical changes that one can see or feel. However‚ even though these physical changes are important‚ the true question is what causes these physical changes? Physical changes to a pregnant women’s body are the result of physiological changes. What is a physiological change? To understand what this kind of change is‚ the term physiology must be understood
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problems during and after pregnancy. Fetal alcohol spectrum disorder is a condition which leads to various irreversible problems; it is considered to be poisonous because it causes great damage before conception‚ and most importantly‚ the developing embryo. The effect on the fetus varies; some are more affected than others. When the alcohol enters the body of a pregnant mother‚ it enters her bloodstream which travels pass the placenta to the fetus. It takes a significant amount of time for the fetus
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Development usually comes in stages‚ as in the changes in the complexity of an individual and a rise in skills or knowledge‚ such as learning how to walk. Conception to birth (0-9 months) P1) The internal development is the development of the embryo in the mothers body which is needed to absorb oxygen and food from the blood for the baby. At this stage all of the developments are physical changes. M1) Physically about two weeks after a woman’s menstrual period the ovary releases an egg‚ which
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Negative Influences on the Developing Fetus The purpose of this posting is to discuss the maternal / paternal‚ environmental‚ and teratogenic factors that have a negative influence on the developing fetus. This information will be related to how it concerns the practice of mental health counseling. Maternal and paternal factors both affect the developing fetus. According to the reading in Broderick and Blewitt 23 of the 46 chromosomes were contributed by the father so his part can not
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How Much Water to Drink before Ultrasound? A pregnancy ultrasound (sonography)‚ is an imaging test that uses high-frequency sound waves to create a picture of how a baby is developing in the womb. It is also used to check the female pelvic organs during pregnancy. The ultrasound image is produced based on the reflection of the waves off of the body structures. When preparing for a pregnancy ultrasound‚ you will need to have a full bladder to get the best ultrasound image‚ but how do you know how
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For example‚ a husband and wife who cannot get pregnant on their own‚ can try in-vitro fertilization so that the wife or a surrogate mother can carry their child to term. This process is not always 100%‚ can require more than one embryo being placed‚ in hopes of one of them
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