Nobody would have expected just how much damage a palm sized toad could have done. Back in 1935‚ entomologists were trying to come up with a solution to the beetle infestation which caused the depletion of the sugarcane crop. Reginald Mungomery thought he had the solution by bringing in the cane toad‚ but eighty years later ecologists are still trying to fix the problem he caused. Mungomery’s theory worked in Hawaii with the toads eating the beetles. Unfortunately‚ the cane toads in Australia ignored
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BIOLOGY NOTES TERM 1 2003 MICROSCOPY Ocular - lens used for magnification (usually x10) Objectives - lenses used for magnification Lower powerx4 Medium powerx10 High powerx40 Course adjustment - focuses image‚ moves focus quickly Fine adjustment - focuses image‚ moves focus slowly Stage - specimens are placed here Condenser - focuses light Iris diaphragm - controls amount of light passing through the specimen TOTAL MAGNIFICATION = OCULAR MAGNIFICATION X OBJECTIVE MAGNIFICATION CLASSIFICATION
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Marine National Park in the Gulf of Kutch is situated on the southern shore of the Gulf of Kachchh in the Jamnagar District of Gujarat state‚India. In 1980‚ an area of 270 km2. from Okha to Jodiya was declared Marine Sanctuary. Later‚ in 1982‚ a core area of 110 km2 was declared Marine National Park under the provisions of the Wildlife (protection) Act‚ 1972 of India. It is the first national marine park of India. There are 42 islands on the Jamnagar coast in the Marine National Park‚ most of them
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points did Darwin propose in his Origin of Species? 4. The textbook presents five lines of evidence in support of evolution. List them. 5. Define fossils. What is the fossil record? 6. What is biogeography? What is the difference between marsupial and placental mammals‚ and where are they found? 7. What are homologous structures? What are vestigial structures? 8. Using molecular biology techniques‚ the evolutionary relationships among species can be determined by comparing ______ and
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Deforestation Tropical forests include dense rainforests‚ where rainfall is abundant year-round; seasonally moist forests‚ where rainfall is abundant‚ but seasonal; and drier‚ more open woodlands. Tropical forests of all varieties are disappearing rapidly as humans clear the natural landscape for construction‚ to build roads and urban areas and make room farms and pastures (Lindsey‚ 2007). Although deforestation meets some of the human needs‚ it also has profound‚ sometimes devastating‚ consequences
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The tablet that was left whole had an average dissolving time of 5minites 12 seconds‚ the halves had an average of 4 minutes 13 seconds ‚ the thirds was an average of 4minutes 2 seconds and the last tablet‚ the quarters has the shortest time of 3 minutes 38 seconds My experiment was repeated three times‚ i did this as it helps to improve the reliability of my test. The test was as accurate as possible but of course no test is performed perfectly‚ there are always errors that occur and errors that
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Synonyms and Antonyms: Which of these words is closest in meaning to the word provided? 1. remote a. automatic b. distant c. savage d. mean 2. detest a. argue b. hate c. discover d. reveal 3. gracious a. pretty b. clever c. pleasant d. present 4. predict a. foretell b. decide c. prevent d. discover 5. kin
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w w w e tr .X m eP e ap UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education .c rs om 0500/22 FIRST LANGUAGE ENGLISH Paper 2 Reading Passages (Extended) Additional Materials: * 6 1 2 9 3 6 9 5 7 9 * October/November 2011 2 hours Answer Booklet/Paper READ THESE INSTRUCTIONS FIRST If you have been given an Answer Booklet‚ follow the instructions on the front cover of the Booklet. Write your Centre number‚ candidate number and
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All animals face the same problems in adapting to the desert. They must find shelter from daytime heat and nighttime cold‚ as well as find food and water‚ which are often scarce. Yet‚ in spite of these extreme conditions‚ most animal species are represented in the desert environment‚ even some we typically associate with temperate or wet surroundings. Invertebrates Animals without backbones are called invertebrates. They include simple desert animals such as worms‚ and more complex animals such
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Reading Guide for Chapter 35 – The Vertebrates 1. What are the five features of the chordates? • A hollow dorsal nerve cord just beneath the dorsal surface of the animal. In vertebrates this differentiates into the brain and spinal cord. • A flexible rod called the notochord that’s on the dorsal side of the primitive gut in the early embryo‚ present at some developmental stage in all chordates‚ located just below the nerve cord. May persist in some chordates; in others‚ it is replaced by
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