UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Ordinary Level BIOLOGY Paper 1 Multiple Choice October/November 2005 1 hour Additional Materials: Multiple Choice Answer Sheet Soft clean eraser Soft pencil (type B or HB is recommended) 5090/01 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 candidate number on the answer sheet in the spaces provided
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Evolution of Australian Biota 1. Evidence for the rearrangement of crustal plates and continental drift indicates that Australia was once part of an ancient super continent Identify and describe evidence that supports the assertion that Australia was once part of a landmass called Gondwana including: Matching continental margins Gondwana once consisted of South America‚ Africa‚ Madagascar‚ India‚ Antarctica‚ Australia‚ New Zealand and New Guinea. Continental margin: zone between the ocean basin
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UNIVERSITY OF THE SOUTH PACIFIC BI207- TROPICAL PLANT BIOLOGY 2012 Assignment 1 – Research Essay Manilkara tree Genus under study is the Manilkara tree from the family sapotaceae Introduction Manilkara is a genus of trees from the family Sapotaceae. Collectively known as manilkara trees and they occur throughout the tropics. Trees of this genus yield edible fruit‚ useful wood and latex. Manilkara trees are often significant or even dominant species in their
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1. The classification system developed by Linnaeus in the early 1700s divided living organisms into plant and animal kingdoms. Today‚ that has been expanded into five kingdoms. Which of the following inventions was most responsible for creating the need for the additional three kingdoms and why? (2 points) (0 pts) Fossil fuel-based transportation made it easier to explore and discover new species. (0 pts) Genetic engineering created new species which then needed new kingdoms. (2 pts) Microscopes
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not described or studied in detail until the botanist Robert Brown’s research in 1827. Brownian motion is named in honor of his work. As a botanist‚ Brown first observed the effect in pollen floating in water‚ where it is visible with the naked eye. Through experimentation‚ Brown determined that the specks of pollen were not propelling themselves independently‚ but rather that their motion was pseudo-random. Jean Perrin‚ a French physicist who later won the Nobel prize‚ spring boarded off of Einstein’s
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In a recent study‚ it was found that‚ “The upshot of [Genetically modified organisms] is that 50% of all children in the United States now have chronic diseases and 21% suffer from developmental disorders” (Ferrie 13). This epidemic stems from the fact that GMOs are detrimental to nature and humanity because they destroy ecosystems‚ cause illnesses in humans‚ and spread their genes to organisms that has not yet been modified genetically. One of the most important ways that GMOs hurt nature is by
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opposite of her pear tree---he was the suffering. Just like Logan‚ Jody did not give Janie her ideal pear tree image. “Janie pulled back a long time because he did not represent sun-up and pollen and blooming trees‚ but he spoke for far horizon.” (pg. 29) Hurston uses the word “sun-up” to symbolize hope and “pollen and blooming trees” to symbolize sex and new life‚ but Jody did not give her these things he only gave her fortune. Janie’s relationship to Jody was also very poor because there was a lack
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Asthma and air pollution What is Asthma? Asthma is a chronic disease that affects the air passages of the lungs. It´s characterized by recurrent attacks of wheezing and loss of breath. These episodes or attacks can happen many times a day‚ a week or when exposed to certain substances or in specific physical activity. The World Health Organization estimates that around the world about 300 million people suffer asthma‚ the majority children. In fact it is consider the most common chronic disease
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through male and female cones * mainly represented by tree species * phylem coniferophyta * phylem gnetophyta * phylem cycadophyta * phylem ginkgophyta Angiosperm - flowering plant * the endosperm is (3n triploid) * male pollen and female ovules are produced * fruits and flowers * phylem anthophyta The main difference between bryophytes and tracheophytes is that bryophytes are non-vascular plants whereas tracheophytes are vascular plants. Both of them have heteromorphic
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5 june 2011‚ Transgenic Bt Cotton CICR TECHNICAL BULLETIN NO: 22 TRANSGENIC Bt COTTON Dr CD Mayee Dr P Singh Dr AB Dongre Dr MRK Rao Dr Sheo Raj Central Institute for Cotton Research Nagpur Downloaded from www.cicr.org.in Technical Bulletin from CICR (www.cicr.org.in) 1 Transgenic Bt Cotton TRANSGENIC Bt COTTON 1. Introduction Cotton is one of the major fibre crops of global significance. It is cultivated in tropical and subtropical regions of more than eighty countries
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