Tom Sawyer was a naughty boy; he was always up to some mischief. He lived with his Aunt Polly, and brother Sid. “Tom! Where are you?” Aunt Polly shouted angrily. She had checked every corner of the house, and even the backyard, but Tom was nowhere to be seen. “Tom, come out right now! You’re […]
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Each ovary is connected with a narrow tube-like structure called the fallopian tube. The open end of the fallopian tubes looks like a flower sepal. These fallopian tubes are also called uterine tubes through which ova travel. The ovarian arteries supply blood to the ovaries and these tubes which are a duct and they transport
Robinson Crusoe was a young man, who loved to embark on adventures. He was very fond of sailingto far-off places. One day, Robinson decided that he would voyage to Africa, work there and make some money. “No, Robinson. I do not approve of this,” his father said angrily. Robinson didn’t budge an inch and left
Vagina and Uterus Vagina is an interface between the external and internal reproductive organs. The external organs include: vulva, clitoris and vestibule. It is a muscular tube which is connected with blood vessels and nerves. It makes the connection between the vestibule and the uterus. Uterus is a pear-shaped organ which is the house where
A long time ago, the city of Nottingham (England) was ruled by King Richard. Richard was a very generous king. He always helped the poor and spread happiness. Moreover, he was a just king. He never gave punishment to the innocent. The king had a wicked brother, Prince John. “John, there’s some news I have
Reproductive System Reproduction is the main link in the cycle of life. The lifecycle involves: birth, growth, generation of new life, ageing and death. The ability to generate a new life-form is called reproduction. The human reproductive system is a set of organs working together to produce live offspring. This system is also called the
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A long time ago, on the streets of old England, a young lady was taking her evening stroll. Suddenly, she felt weak and collapsed on the pavement she was walking on. A crowd of people gathered around her. “What happened to her?” “We should get her some help.” They quickly took the lady to a
Disposal of waste products is an essential activity of living organisms. In the process of excretion waste products (mainly in chemical form: Urea) in liquid form are excreted out of the body. The three main steps involved in the formation of urine are: filtration of the plasma, reabsorption of materials/useful solutes, formation of urine and
The Bowman’s capsule extends into nephron tubule. There are four main tubules: the proximal convoluted tubule (PCT), the loop of Henle, the distal convoluted tubule (DCT) and the collecting tube. The tubules are the site for extensive re-absorption of useful plasma solutes. The useful solutes include: sugars and sodium; part of water is also reabsorbed
Ishmael was an observant young man from Manhattan. He had made many voyages as a sailor but now yearned for a whaling adventure. One day, on a cold, dull night in December, he arrived at the Spouter-Inn in New Bedford, Massachusetts. As the inn was full, he had to share a bed with Queequeg, a
The part of nephrons in which the blood plasma is filtered is the glomerulus which is also called Malpighian body. It is a network of capillaries. These capillaries are an extension of the renal artery. The blood plasma is forced into this capillary network under high pressure for filtration. The rate at which blood is
Once upon a time, four sisters–Meg, Jo, Beth and Amy March–lived together with their mother in a small town of New England. Their neighbours called them the Little Women. Their father, Mr March, was away and served as a chaplain in the Civil War. While he was away, the hardship descended on the family. They
Professor Otto Lidenbrock was a respected scientist who lived in Hamburg, Germany. He was a professor of mineralogy. He had a great mind. But he was quite moody and had a bad temper. He lived with his nephew Axel and maid Marta. Axel accompanied him in his physics experiments. When the day’s work was done,
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Long ago in England, there lived a man named Lemuel Gulliver. He loved exploring, and wanted tolead an adventurous life. So, he set sail on a voyage with some of his friends and crew members. The journey started on a positive note, and everyone had a good time. ‘This is the life I wanted,’ Gulliver
Pip, a six-year-old boy, lived on the marshes of Kent with his crooked sister and her husband Joe Gragery. His sister Mrs Joe Gragery was a loud, angry woman who kept reminding Pip and Joe of the problems she had to face to take care of the house. Joe was a blacksmith by profession. On