A solar cell (also called photovoltaic cell or photoelectric cell) is a solid state electrical device that converts the energy of light directly into electricity by the photovoltaic effect. Assemblies of cells used to make solar modules which are used to capture energy from sunlight‚ are known as solar panels. The energy generated from these solar modules‚ referred to as solar power‚ is an example of solar energy. Photovoltaics is the field of technology and research related to the practical
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The definition of family has changed drastically over the years. According to dictionary.com‚ a family is a group consisting of parents and children living together in a household. In the past few years‚ this traditional definition has changed. To be considered a family people do not have to be living in the same household or related by blood. There are many different factors that play into making people a family. A family does not have to be two parents with kids. There are lots of families whose
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A Person Who has had Influence on my Life There¶s always a time in one¶s life‚ when a hero comes along. Somebody who has inspiredyou‚ and helped you learn what life is about.I remember it as if it was yesterday‚ surprisingly‚ as my state of mind on that cold December night can be described only of numbness and confusion. It was around eight o¶clock p.m.when my mother received a phone call from her brother-in-law‚ who told her that her sister had just recently been admitted into the hospital after
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Stem cells -are biological cells found in all multi cellularorganisms‚ that can divide (throughmitosis) and differentiate into diverse specialized cell types and can self-renew to produce more stem cells. In mammals‚ there are two broad types of stem cells: embryonic stem cells‚ which are isolated from the inner cell mass of blastocysts‚ and adult stem cells‚ which are found in various tissues. In adult organisms‚ stem cells and progenitor cells act as a repair system for the body‚ replenishing
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neurotransmitter. In both male and female it is responsible for our physical movement‚ sexual desire‚ motivation .the function is similar in both male and female but abnormal levels of dopamine have a greater effect in males than in females. Estrogen-this hormone is very important in females and is responsible for two cycles in the female body menstrual cycle and estrous cycle. This hormone is considered to be the primary female sex hormone and induces several changes in the female body. In males this hormone
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Essay cover sheet Essay Title: How Do Nerve Cells Work and Why is it Important for Psychologists to know this? Student number: M00267898 Word count (Excluding title and references section):1‚062 Declaration By submitting this work I acknowledge that I am its author‚ that all sources consulted in its preparation are referenced appropriately in accordance with the referencing guide‚ and that I have not copied from any source. How Do Nerve Cells Work and Why is it Important for Psychologists
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Paddy Clarke Ha Ha Ha is a fictional novel that is written by Roddy Doyle. Doyle is one of the best novelists that have written this book. It won the Booker Prize‚ which is Britain’s highest award‚ in 1993. This book is full of hilarious slang‚ colloquialisms‚ vulgarisms and cursing that is so vibrant and charged that it is almost musical. This book tells of an Irish boy named Patrick‚ who lives in Barrytown‚ Ireland. He and his friends always hang out together‚ but they always find trouble
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SPECIALIZED CELL ANIMAL Sperm cells PLANT Xylem cells are specialised to find a female cell (egg cells) and join with it. They have tails‚ that makes them move in water to find and fertilize the female cell. They can move because they have many mitochondria located between the tail and the head‚ which gives them energy. In the head‚ there is a vacuole filled with acrosome‚ which is a specialized Lysosome that releases enzymes in order for the Sperm Cell to break into the Egg Cell‚ through the
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roles of mitotic cell division‚ meiosis‚ and fertilization in the human life cycle. Mitosis allows for growth and repair from the fertilized egg to the adult. In reproductively mature individuals‚ meiosis creates gametes with half the genetic material. The male gamete then fertilizes the female gamete during sexual reproduction‚ forming a zygote with a full set of genetic material. 2. Why are both cell division and apoptosis necessary for the development of an organism? Cell division is needed
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Males VS Females As described in Weiten‚ Dunn & Hammer‚ the Characteristics of traditional masculine and feminine body language differ in many areas. Many people may look at the behavior of aggression as a traditional body language as masculine for a male. Man people may look at the traditional body language of a female as being nurturing and loving for the feminine role. It’s very obvious that men and women differ in physical appearance as well as body parts but there are still many differences
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