Angela would like to breed rabbits for appearances in shows. How could she make sure her rabbits were winning rabbits? Break it down…. 1. 2. 3. 4. What are the different ways animals can be bred? What features do judges look for in rabbit shows? Which breeding method should she use? Describe it. Why should she use this method and not the other ones? 6 mark question • What are the similarities and differences between bird and mammal reproduction? Break it down • Look at the sex organs – what are the main differences? • What is fertilisation? • How does it happen in mammals? • How does it happen in birds? • How long does it take for the embryo to develop? How could we set up an artificial incubator? Animal Housing • All types of housing have features to provide for the need of the animals. • Describe how these examples provide for the needs of the animals Break it down…. • What are the names of the animal housing? • What things are vital to the animal? • How is this provided for in the housing? • What problems could occur if these basic needs are not met? Model Answer The hutch provides a home for a rabbit. It has space for the rabbit to move around freely and also a quiet and warm place to sleep. A water bottle and food bowl provide vital food and drink for the rabbit. The rabbit will need fresh food and water daily and require cleaning once a week. If the hutch is too small and the rabbit doesn’t get enough exercise they could develop behavioural problems. The aviary or bird cage provides a home for a bird. Again, it has a food and water bowl and a budgie might like a cuttlefish to provide calcium and jaw exercise. The cage must be large enough for the bird to spread it’s wings and a cover should be provided at night for sleeping. The bird will also need bars for perching. The food and water will need to be changed on a daily basis and the cage cleaned weekly. A cage which is too small for the bird could cause behavioural problems Diet is important to small animals Explain the importance of the main nutrients in a rabbit’s diet (6) Nutrients can be given to a small animal in different forms. Explain the different forms and their benefits to the animal (6) Rabbits have an important part of their digestive system known as the Caecum, whereas Chickens have the gizzard. Explain the roles of these parts and why they are needed by the animals (6) It is important for the health of a rabbit to be checked on a weekly basis to avoid any major health issues. Explain how a health check is carried out and it’s importance (6) It is important to handle, transport and weigh small animals correctly. Explain how a small animal can be handled, transported and weighed and why it is important for both the animal and owner (6) A farmer is growing vegetables and many of his crop seem to be failing. How can he tell that his crops are failing? How could he improve the growth of his vegetables? (6) Bullet points • Unhealthy plant; Wilting – under or over watering • pest damage – aphids and slugs • poor growth – lack of nutrients • Improve growing medium • Control humidity, temperature, light, water An organic farm may use biological pest control, whereas an intensive farm may use non-biological methods. Discuss advantages and disadvantages for using these different methods (6) Bullet points • Biological – use of a predator to eat the pest • Advantage – no use of pesticides, no run off into water sources • Disadvantage – can change the balance of the ecosystem • Non-biological – use of pesticides • Adv – effective way to increase crop yield • Disadv – can run off and pollute water sources A farmer may choose to use organic or inorganic fertiliser. Discuss the advantages and disadvantages of each. (6) Bullet Points • Organic fertiliser – manure • Adv - Adds humus, improves crumb structure • Disadv – unknown nutrient composition • Inorganic – man made • Adv – easy to spread and releases known nutrients quickly • Disadv – expensive, not organic method Discuss adaptations of a flower for wind and insect pollination (6) Explain how selective breeding could be used to a new variety of tomato plant (6) Discuss the differences between bulbs, runners and rhizomes used in plant cultivation (6) Explain the different ways that soil can be cultivated and the importance of soil cultivation to plant growth (6) Discuss the problems associated with storing crops and ways that storage life can be lengthened (6) A red rose is crossed with a white rose and all of the F1 generation are red. Show using a genetic cross diagram, the phenotype and genotype of the parents and offspring and the chances of producing different coloured roses (6)
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