Write your name here Surname Other names Edexcel Certificate Edexcel International GCSE Centre Number Candidate Number Biology Unit: KBI0/4BI0 Science (Double Award) KSC0/4SC0 Paper: 1B Tuesday 15 May 2012 – Morning Time: 2 hours You must have: Ruler Calculator Paper Reference KBI0/1B 4BI0/1B KSC0/1B 4SC0/1B 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
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Biology Grade 11 Exam Study Guide Diversity Taxonomic Categories Domain Kingdom Phylum Class Order Family Genus Species Hierarchy From most general to most specific Binomial Nomenclature System used to identify all organisms on Earth Identifies an organism by its genus and species (ex. Humans-homo sapiens) Developed by Linnaeus in the 18th century Identifying Species 3 methods: Morphology Form and shape It is simple but there are natural variations in population Biology
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parthenogenesis is going to be largely limited to organisms that are obligately parthenogenetic. Parthenogenesis is the “production of an embryo from a female gamete without any genetic contribution from a male gamete” (Mittwoch‚ 1978). Sexual reproduction is the process of cross-fertilisation in which the genomes of two parents via gametes are brought together in one cell forming a zygote (Hörandl E‚ 2009). It is necessary to clarify that parthenogenesis is a different mechanism to self-fertilisation
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function? 17. How are triplet codes‚ codons‚ and amino acids related? 18. What is the purpose of mitosis? 19. Briefly describe what happens in each phase of mitosis? 20. What is the purpose of meiosis? 21. Explain the relationship between gametes‚ zygote‚ blastocyst‚ embryo and fetus. 1. Connective Tissue gives shape to organs and holds them in place. Blood and bones would be examples. Muscle cells form active contractile tissue of the body known as muscle tissue. Muscle
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For this experiment you will need green and white seedling The purpose of this experiment was to test two different hypotheses about the credibility of Mendel’s law of independent assortment and law of segregation. First is that the first plant is the product of a monohybrid cross. A monohybrid cross is “a cross between two organisms that are heterozygous for the character being followed” (Urry‚ G-21). The monohybrid is represented through a phenotypic ratio of 3:1 and a dihybrid cross is represented
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Reproduction Brenda Rodriguez PSY/265 January 21‚ 2013 Megan Hild Reproduction The function of each of the female and male external and internal sex organs in relation to the sperm‚ and the egg is to function together to foster the reproduction process. (University of Phoenix‚ Hild‚M. 2009). The genital tract is the area of the body containing parts related to the reproductive process
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Trippple Award Specification (4BIO) Examination in 2012 Trippple Award Specification Key words are underlined in red. Practical work is printed in italics. Section 1: The nature and variety of living organisms Characteristics of living organisms include; M ovement R espitation S ensitivity G rowth R eproduction E xcretion N utrition In addition‚ all living organisms contain nucleic acids (DNA) and have the ability to control their internal conditions. Finally‚ all living
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Plant Kingdom (Biology) | Close | | Study Material | | Division Algae Classification within Angiosperms * Artificial system of classification * Given by Linnaeus * Based on vegetative characters and androecium structures * Gave equal importance to vegetative and sexual characteristics * Natural system of classification * Based on morphology‚ anatomy‚ embryology‚ and phytochemistry * Given by George Bentham and Joseph Dalton Hooker * Phylogenetic
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things using morphological differences | Cocci | A micro-organism whose overall morphology is sphere | Plasmid | A circular molecule of DNA that is commonly found in bacteria | Gametophyte | A haploid plant in sporic reproduction that produces gametes by mitosis | Lichen | An organism that results from a mutualistic relationship between a fungus and photosynthetic plant or alga. | Biodiversity | The variety and abundance of organisms‚ genes and ecosystems found in a given area | Cell membrane
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transfer of pollen from male part of a plant‚ called stamen to the female part of the plant‚ known as carpel. This enables fertilization and sexual reproduction to occur. Pollen grains are contained within the pollen while the carpel contains the female gamete. In gymnosperms the pollen is directly applied to the ovule. The receptive part of the carpel is called a stigma in the flowers of angiosperms while the receptive part of the gymnosperm ovule is called the micropyle. Pollination is essential in the
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