Edexcel GCSE Biology/Science Unit B1: Influences on Life Foundation Tier Tuesday 15 May 2012 – Morning Time: 1 hour You must have: Calculator‚ ruler Paper Reference 5BI1F/01 Total Marks Instructions Use black ink or ball-point pen. Fill in the boxes at the top of this page with your name‚ centre number and candidate number. Answer all questions. Answer the questions in the spaces provided – there may be more space than you need. Information The total mark for this paper
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Steps of the Scientific Method Observe and Question Form testable hypothesis/prediction Collect data/conduct experiment to test prediction Interpret results If hypothesis is accepted then disseminate findings‚ if not make new hypothesis Repeat Understand the Gaia Hypothesis That living matter on the earth collectively defines and regulates the material conditions necessary for the continuance of life. The planet‚ or rather the biosphere‚ is thus likened to a vast self-regulating organism-
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CARIBBEAN EXAMINATIONS COUNCIL Car ib b e an Se con d ar y Ed ucat ion Ce r t if icat e ® CSEC® BIOLOGY SYLLABUS a) Effective for examinations from May–June 2015 NCH 2.SYLLABUS CXC 20/G/SYLL 13 Published by the Caribbean Examinations Council All rights reserved. No part of this publication may be reproduced‚ stored in a retrieval system‚ or transmitted in any form‚ or by any means electronic‚ photocopying‚ recording or otherwise without prior permission of the author or
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History Of Spice Egyptians used a lot of spices for cooking and stuffed mummies Burned cinnamon to hide stench First recorded spice Traded spice with India Spice trade silk road All roads go to fertile crescent Arabs created a monopoly on the spice trade moving toward Europe Arabs Kept Europeans in the dark about the source of spices brought from India Created secrets and Myths Might boil seeds so Europeans couldn’t grow it Crusaders brought back new spices when they returned from battle
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Section_____________________ 7 Multiple Choice (2.5pts. each) NOTE START AT 51 on scantron! 51.) A species-species interaction where both species benefit from the interaction is called: a.) Predation b.) Amensalism c.) Mutualism d.) Competition 52.) Which of the following is required for two species to be competing? a.) Niches of two species overlap b.) Two species occur in the same place c.) A shared resource is limiting d.) At least one population is increasing
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BSC2011C Final Review Unit 1 Review Ch. 25‚ 22‚ 23‚ 24‚ 26‚ 19‚ 27 Ch. 25 1. Life is metabolism and heredity. Metabolism is the mechanism that creates order and complexity from chaos‚ by acquiring and expending energy. Heredity is the ability of an organism to copy itself and it is broken down into: i. Multiplication‚ ii. Inheritance‚ iii. Variation. 2. DNA codes via RNA for 20 of naturally occurring amino acids. Amino Acids are the building blocks of proteins and bodies. DNA stores and transmits
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Important Celebrity Attributes While selecting a celebrity as endorser‚ the company has to decide the promotional objective of the brand and how far the celebrity image matches with it. The selection is in fact a collaboration‚ from which both the company and the celebrity gains. \ The most important attribute for a celebrity endorser is the trustworthiness. The target audience must trust that a celebrity carries a particular image and it must match with the product. \ The second attribute in order
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1. 2. Basis of life are (a) nucleic acids (c) nucleoproteins Life span of parrot is (a) 140 years (c) 80 years Theory of ’saltations’ (b) proteins (d) amino acids (b) 60 years (d) 40 years was given by (c) Mixed (d) None of these 11. Pappus helps in dispersal of pollen in (a) Asteraceae (b) Brassicaceae (c) Malvaceae (d) Solanaceae 12. In which of the following groups are seeds present? (a) Psilophyta (c) Lycopodiophyta 13. Match the columns. Column I (Vitamins) A. B. C. D. B‚ D E C
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Lemurs are a type of primate that are native to Madagascar. There are many different species of lemurs and they are all endangered. There are several reasons why lemurs are facing extinction; lemurs are being put at risk by deforestation‚ hunting‚ and climate change (Dunham et al.‚ 2008). Deforestation in Madagascar is especially significant in affecting lemurs. Deforestation leads to habitat loss and habitat fragmentation‚ which may have negative consequences for lemurs (Craul et al.‚ 2009). Lemurs
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Task one A). How do living things interact? Living things find a way to live off the land. Not with artificial flavouring or stuff like that. But it may not last unless we take good care of it. Living things interact by: 1). Viruses Learn about viruses and their surroundings‚ and how they are created. What is a Virus A virus s a small‚ NONLIVING particle that invades and then reproduces inside a living cell. Viruses are considered nonliving because they are not cells. They cannot: * use energy
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