guide--------------------------Dylan Nguyen Please feel free to pass to you friends if it could help. Chapter 9--- Birth Zygote: upon successful fertilization, the DNA of the man’s sperm and the woman’s ovum join together, and a new organism, combining the genetic material of both, is created. Within hours, this organism, now called the ZYGOTE (P336)-A fertilized ovum (or egg) moving down the fallopian tube. Then it divided into 2-4-8 and so on, travel down the fallopian tube to the uterus in 2 to 4 days. –HCG (human chorionic
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w w w e tr .X m eP e ap UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Ordinary Level .c rs om 5090/12 BIOLOGY Paper 1 Multiple Choice Additional Materials: Multiple Choice Answer Sheet Soft clean eraser Soft pencil (type B or HB is recommended) October/November 2012 1 hour *4900384293* READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid. Write your name, Centre number and
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fur colour from their parents. Information about fur colour is passed on from one generation to the next in the form of ................................... in the ..................................... of an egg and sperm. 3 marks Maximum 5 marks 2. The diagram below shows a cell from the inside of a human cheek. (a) On the diagram, label parts A, B and C. [pic] 3 marks (b) Plant cells have some parts which animal cells
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The Integumentary System 1. Skin- largest organ of the body 2. Pathogens- disease- causing organisms 3. Sensory receptors- detect temperature, pain, touch and pressure 4. Epidermis- thin, outer membrane layer 5. Dermis- middle, fibrous connective tissue layer 6. Subcutaneous layer- innermost layer, containing fatty tissue 7. Keratin- hard protein cells that allow the skin to act as an effective barrier to infection 8. Melanocytes- cells which produce black pigment
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Introduction The investigatory project designs to help indirectly the common people on the use of indigenous floral resources such as Alstonia Scholaris that serves as a material to regulate and inhibit biotic potential of the individual. 1.1 Background of the Study The country’s current population is estimated at 93 million people (NSO Annual Report: 2010) where about 65 percent are living in urban area and experience poverty due to the usual family practice of giving birth. Pro-RH Bill lawmakers
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Embryonic stem cells are very special because they are pluripotent; they are capable of becoming any cell in the body as opposed to an adult stem cell that is limited by where they are in the body. They are collected form the blastocyst, a fertilized egg that has divided into a small cluster of about 200 cells. At this stage the cells are all the same and are undifferentiated to form and function. If these blastocysts were allowed to continue to divided and differentiate they would start to specialize;
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“Facts about the Immortal Jellyfish” by Heather Brown states, “For instance, the muscle cells of the immortal jellyfish can turn into egg cells or even sperm cells. Nerve cells may also turn into muscle cells, and this means that the immortal jellyfish has transformation powers, the likes of which have never been seen and unmatched in the animal kingdom.” For example, salamanders can regrow their
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cause in cancer. Errors can occur when the nucleotides do not pair correctly with one another. According to Dr. Pray in the research she conducted she found out that “In humans, if enough somatic mutations (i.e., mutations in body cells rather than sperm or egg cells) accumulate over the course of a person's lifetime, the end result could be cancer.” Roberts 2 Another factor in causing cancer could be the plasma membranes fluidity. The plasma membrane is a membrane that surrounds the cell, separating
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_________________________________________________Abortion should not be legal and must be stopped. Laws have never stopped abortion, but only made it unsafe for women. Abortion is a universal practice that has been with us since the beginning of time, whether legal or illegal. _________________________________________________Most Canadians believe that abortion should be illegal. The majority rules in a democracy. About 78% of Canadians believe that abortion is a private matter between a woman
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