CSEC Agricultural Science · May/June 2009 · Paper 2

30 questions and parts from this paper. Open one to see it in full, then practise it on Quelpr and get it marked against the mark scheme.

1. 1(a)2 marksRecommend TWO methods that Mary can use to grow vegetables at home.
2. 1(b)2 marksState ONE advantage for EACH of the two methods recommended in (a).
3. 2(a)2 marksName TWO other constraints to agriculture in the Caribbean region.
4. 2(b)2 marksPatsy is a vegetable farmer facing labour shortages on her farm. Suggest TWO ways she can overcome this problem.
5. 3(a)1 markState the possible pH range of the farmer's acidic soil.
6. 3(b)1 markIdentify ONE soil amendment that can be used to treat acidic soil.
7. 3(c)2 marksBriefly explain how the farmer would apply the identified soil amendment.
8. 4(a)2 marksIdentify the machinery shown in Figure 1 and the equipment shown in Figure 2.
9. 4(b)2 marksSuggest TWO benefits to crop production when the machinery shown in Figure 1 is used.
10. 5(a)1 markState the enzyme responsible for the breakdown of protein in the proventriculus.
11. 5(b)1 markState ONE function of the rumen.
12. 5(c)(i)1 markName ONE animal that BEST utilizes these feed types.
13. 5(c)(ii)1 markSuggest ONE reason why these feeds meet the nutritional requirements of the named animal.
14. 6(a)(i)1 markSuggest ONE way of improving the design of the pen to reduce heat build-up.
15. 6(a)(ii)1 markExplain how the improved design in (a)(i) helps reduce heat build-up.
16. 6(b)2 marksIdentify TWO features in the poultry pen in Figure 3 that provide security for the broilers.
17. 7(a)(i)1 markName ONE type of cost other than variable cost incurred on a poultry farm.
18. 7(a)(ii)2 marksDefine the cost named in (a)(i) and give ONE example of it on a poultry farm.
19. 7(b)9 marksUsing the data in Table 1, prepare a complete budget identifying the two types of costs for the poultry farm. Include total expenses and expected profits, showing all working.
20. 8(a)(i)2 marksSuggest the changes he would need to make to land preparation when switching from lettuce to sweet potato.
21. 8(a)(ii)5 marksSuggest the changes he would need to make to harvesting methods when switching from lettuce to sweet potato.
22. 8(a)(iii)2 marksSuggest the changes he would need to make to postharvest handling when switching from lettuce to sweet potato.
23. 8(b)2 marksList TWO plant parts of sweet potato that can be used for propagation.
24. 8(c)1 markName ONE variety of sweet potato recommended for planting in the Caribbean.
25. 9(a)2 marksIdentify EACH piece of honey extraction equipment shown in Figure 4 and Figure 5.
26. 9(b)(i)1 markState an appropriate feed ration for one-day-old broilers.
27. 9(b)(ii)a)2 marksExplain what is meant by 'feed conversion ratio'.
28. 9(b)(ii)b)3 marksDetermine which pen has the better feed conversion ratio, showing all working.
29. 9(b)(iii)2 marksRecommend TWO measures a farmer can adopt to minimize the effects of a bronchitis outbreak on the performance of birds.
30. 9(b)(iv)2 marksRecommend TWO measures to overcome the problem of variable feed protein quality between batches.