Agricultural Sciences Grade 12 IEB Paper 2 2017 Memo

Downloaded from hlayiso.com NATIONAL SENIOR CERTIFICATE EXAMINATION NOVEMBER 2017 AGRICULTURAL SCIENCES: PAPER II MARKING GUIDELINES Time: 2½ hours 150 marks These marking guidelines are prepared for use by examiners and sub-examiners, all of whom are required to attend a standardisation meeting to ensure that the guidelines are consistently interpreted and applied in the marking of candidates' scripts. The IEB will not enter into any discussions or correspondence about any marking guidelines. It is acknowledged that there may be different views about some matters of emphasis or detail in the guidelines. It is also recognised that, without the benefit of attendance at a standardisation meeting, there may be different interpretations of the application of the marking guidelines. IEB Copyright © 2017 PLEASE TURN OVER

Downloaded from hlayiso.com NATIONAL SENIOR CERTIFICATE: AGRICULTURAL SCIENCES: PAPER II – MARKING GUIDELINES Page 2 of 8 SECTION A QUESTION 1 1.1 1.1.1 A B C D 1.1.2 A B C D 1.1.3 A B C D 1.1.4 A B C D 1.1.5 A B C D 1.1.6 A B C D 1.1.7 A B C D 1.1.8 A B C D 1.1.9 A B C D 1.1.10 A B C D 1.2 1.2.1 H 1.2.2 F 1.2.3 D 1.2.4 C 1.2.5 G 1.3 1.3.1 Mule 1.3.2 Credit/loan 1.3.3 Marketing/Advertisement 1.3.4 Motivation/Incentive 1.3.5 Genetic engineering/modification 1.4 1.4.1 Retail 1.4.2 Atavism 1.4.3 Losses/risks 1.4.4 Heterosis/hybrid vigor 1.4.5 Working/production/floating/trading IEB Copyright © 2017 PLEASE TURN OVER

Downloaded from hlayiso.com NATIONAL SENIOR CERTIFICATE: AGRICULTURAL SCIENCES: PAPER II – MARKING GUIDELINES Page 3 of 8 SECTION B QUESTION 2 AGRICULTURAL MANAGEMENT AND MARKETING 2.1 Financial statements 2.1.1 Calculation of values A = 36 500 B = 37 300 C = 35 900 D = 36 000 2.1.2 Profitability calculations Farmer A: 37 300 – 36 500 = 800 Farmer B: 36 000 – 35 900 = 100 Therefore Farmer A is more profitable 2.1.3 Cost reduction strategies • By reducing the amount of labour used • Reduce the number of labourers used • Save water wherever possible • Find a cheaper supplier of laying hens • Try and source cheaper feed • Solar power • Cheaper egg trays (Any 3) 2.1.4 Components of a cash-flow budget Income – sale of livestock, manure, eggs Expenditure – operating expenses (layers, feed, gas, egg trays, veterinary care, maintenance), electricity, water and wages Profit – gain or loss (Any 2) IEB Copyright © 2017 PLEASE TURN OVER

Downloaded from hlayiso.com NATIONAL SENIOR CERTIFICATE: AGRICULTURAL SCIENCES: PAPER II – MARKING GUIDELINES Page 4 of 8 2.2 Layers laying eggs 2.2.1 Line graph Line graph check list Evidence Yes No Heading 1 0 X axis labelled (Layer age (weeks)) 1 0 Y axis labelled (Average % of layers laying) 1 0 Correct values 1 0 Line graph: Average % 1 0 Line graph: Actual farm average % 1 0 2.2.2 Better or worse than district average Worse The actual on farm average is consistently below the district average 2.2.3 Number of eggs during week 32 10 000 × (82/100) × 7 = 574 000 eggs 2.2.4 Difference in money between average and actual 10 000 × (94/100)/12 = 783 dozen 10 000 × (80/100)/12 = 666 dozen 783 – 666 = 117 dozen 117 × R7,50 = R877,50 more if on district average IEB Copyright © 2017 PLEASE TURN OVER

Downloaded from hlayiso.com NATIONAL SENIOR CERTIFICATE: AGRICULTURAL SCIENCES: PAPER II – MARKING GUIDELINES Page 5 of 8 2.3 Business plan FIVE main items • Name of the business/partnership/partners • Summary of business plan/strategy • Production plan • Management plan/time management plan • Sales and marketing plan • Financial plan • Reasons for success of business (Any 5) QUESTION 3 PRODUCTION FACTORS 3.1 Farm management 3.1.1 FOUR main management factors • Production/physical resources/environment/land • Staffing/human resources/labour • Finances/capital • Marketing 3.1.2 FOUR External influences • Political environment/politics • Global economic environment/economy • Social environment/society/effect of HIV/AIDS/culture/religion/life- style choice • Legal environment/law/legislation/justice • Natural disaster/extreme climatic conditions • Profitability • Ethics • Environmental sustainability • Competition from other sectors • Technological forces • Disease (Any 4) 3.1.3 FIVE Economical characteristics of land • Can be bought and sold • Appreciates over time (good investment) • Has a production potential which influences the market value • Is indestructible • It is connected to the law of diminishing returns • Good land is limited • Different production capacities/restrictedness • Is durable/soil is permanent/long lasting • Limited to specific environment/economic situation/fixed • Availability of agricultural land is limited (Any 5) IEB Copyright © 2017 PLEASE TURN OVER

Downloaded from hlayiso.com NATIONAL SENIOR CERTIFICATE: AGRICULTURAL SCIENCES: PAPER II – MARKING GUIDELINES Page 6 of 8 3.2 Job applications 3.2.1 Scoring of the candidates Qualification Management Technical Candidates level skills skills Candidate A 3 / good 3 / good 1 / weak Candidate B 1 / weak 1 / weak 3 / good 3.2.2 Candidate suitability (a) Candidate A – has good qualifications and management skills (b) Candidate B – good technical skills 3.3 Income statement 3.3.1 Examples of various components (a) Overheads Bank charges/electricity and water/marketing costs/telephone/ insurance and licenses • Not linked to one enterprise in particular (b) Variable costs Feeds/seeds and seedlings/fertiliser and lime/weedicide and pesticide/fuel, oil and grease/labour costs, livestock purchases • Affected by level of production (c) Fixed costs Repairs to fixed improvements, rent • These will not vary with the level of production 3.3.2 Reducing labour expenses • Mechanization • Increase their productivity • Reduce the labour force • Send labour for training (Any 2) 3.4 Four ways managers can improve workers' living conditions • Adequate housing • Adequate food and clothing • Adequate recreation facilities • Adequate leave • Adequate wages, pension and bonus scheme • Education and training • Free lights and water • Provide transport to and from work (Any 4) IEB Copyright © 2017 PLEASE TURN OVER

Downloaded from hlayiso.com NATIONAL SENIOR CERTIFICATE: AGRICULTURAL SCIENCES: PAPER II – MARKING GUIDELINES Page 7 of 8 QUESTION 4 BASIC AGRICULTURAL GENETICS 4.1 Maize breeding 4.1.1 Punnett square A a A Aa aa a Aa aa 4.1.2 Genotype definition (a) The genetic make-up/code/alleles/composition of an organism. Phenotype definition (b) The appearance of the individual affected by the genotype and its interaction with the environment. Recessive gene definition (c) Gene that is overshadowed/dominated in a crossing by another gene and becomes less visible/hidden/does not express itself in the offspring. 4.1.3 Bt maize characteristics • Pest resistance • Herbicide resistance • Drought resistance • Adaptability to environmental conditions • Disease resistance • Early maturing to escape harsh conditions • Longer period of keeping germination ability 4.2 Agapanthus breeding 4.2.1 Missing labels i – Bb ii – Bb iii – 100% Bb iv – Bb v – Bb vi – B vii – b viii – B ix – b IEB Copyright © 2017 PLEASE TURN OVER

Downloaded from hlayiso.com NATIONAL SENIOR CERTIFICATE: AGRICULTURAL SCIENCES: PAPER II – MARKING GUIDELINES Page 8 of 8 4.2.2 Genotype of F1 generation 100% are Bb 4.2.3 Genotype of F2 generation 25% BB : 50% Bb : 25% bb 4.2.4 White flower % 25% 4.3 Indigenous cattle 4.3.1 Evidence of Nguni being indigenous Indigenous cattle breed of South Africa/Nguni cattle are reintroduced 4.3.2 Four adapting qualities of Nguni cattle • Resistant to a number of diseases • Resistant to internal and external parasites • Adapted to excessive heat conditions • High fertility • Short calving interval • High adaptation to poor quality grazing • Long productive lifespan (Any 4) Total: 150 marks IEB Copyright © 2017