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Search results 4761 - 4770 of 8374 matching essays
- 4761: Anne Frank
- ... lot of friends. However her father was still worried, for in Germany the Nazis gained almost complete power. In 1940, the Germans invaded and conquered Holland. Anne's life had changed by the Germans taking control. She could not go to her school, and was to attend the Jewish Lyceum. No Jews were allowed out on the streets at night. Her life changed again. It was not a happy one for ...
- 4762: Arthur Kornberg
- ... DNA that was biologically active. By 1967 the two researchers announced their success. This research would help in future studies of genetics, as well as in the search for cures to hereditary diseases and the control of viral infections. The Stanford researchers have continued to study DNA polymerase to further understanding of the structure of that enzyme and how it works. Kornberg has used his status as a Nobel Laureate on ...
- 4763: Auguste Rodin
- ... personal insults during their lifetimes as was given to Rodin likewise there are few artists who have known such personal glory during their carriers. Rodin's sculpture was so powerful and original that those in control of the art world did not understand him in his day. He was refused admittance into the Ecole des Beaux-Arts three times and was the brunt of many articles criticizing his works. His talent ...
- 4764: Frogs
- ... something poisonous or bad for them, they can throw up their entire stomach and wipe it with their right front leg. Frogs help out humans in many ways. Toads are used world wide as pest control in gardens and on farms. One toad alone can consume thousands of insects. Frogs have been used as food for centuries. Efforts have been made to harvest frogs, but most frogs eaten today are taken ...
- 4765: Augustus Caesar
- ... Anthony. Octavian had no military experience or political experience. But he was now Julius Caesar's son. As Rome once again fell into devastation, they needed someone who could pull Rome back together and take control. This led to the second triumvirate. The three men who were running in this were Lepidus, Octavian, and Marc Anthony. After Lepidus retired from running for dictator, it left only Octavian and Marc Anthony. As ...
- 4766: Evolution of Immunity and the Invertebrates
- ... flies, as well as lower vertebrates. This suggests that antibody-based defense systems, although only active in vertebrates, found their roots in the invertebrate immune system. Evolution seems to have also conserved many of the control signals for these defense mechanisms. Work is currently being done to isolate invertebrate molecules similar to the cytokines of vertebrates. Cytokines are proteins that either stimulate or block out other cells of the immune system ...
- 4767: Evolution From A Molecular Perspective
- ... advantage that makes him more attractive to the opposite sex, and his genes are passed on to his offspring. One of the only mutations that could, and has, gone unnoticed is the expansion of the control of the mind. Over the hundreds of years of human existence, especially in the past few decades, the knowledge of the modern man has expanded dramatically, and now, with the ease of the internet, anyone ...
- 4768: Diverrsity of Plants
- ... water in soil, however, is available to plants, because of the nature of water itself. Water Movement Water flows through plants in a continuous column, driven mainly by transpiration through the stomata. The plant can control water loss primarily by closing its stomata. The cohesion of water molecules and their adhesion to the walls of the very narrow cell columns through which they pass are additional important factors in maintaining the ...
- 4769: Damn Near Everything There Is To Know About Cells:
- ... another. Groups of two or more tissues that function together make up organs. An organ system is a group of organs that work together to carry out major life functions. Eukariotic Cell Structure: Boundaries and Control: Plasma Membrane - The plasma membrane is sometimes called the cell membrane, or the cellular membrane. It is the outermost part of the animal cell, and it's purpose is to enclose the cell, and change ...
- 4770: Birds
- ... from the brain to the muscles. This provides a reaction to something. On a bird’s brain, the cerebellum is relatively larger than a cerebellum on a mammal. The cerebellum is what birds use to control balance and the muscles they use to fly. Male birds have testes and the female birds have ovaries, just like in other vertebrates. Most birds mate by pressing their vents together. Sperm cells quickly pass ...
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