(a) ldentify specimens l, J, and K.
Specimen I: Specimen J; Specimen K;
(b) State three functions of each of specimens I, J and K to the animal.
(c) Name the process marks in preserving fresh quantity of specimen L
(d) Give five products that can be produced from specimen L (MILK).
(a) Identify specimens E, F. G and H. {2 marks}
Specimen E, Specimen F; Specimen G; Specimen H;
(b) Name the part of the plant usually attacked by each of specimens E, F, G, and H. {2 marks}
(c) Give two ways by which each of the specimens damages crops. {8 marks}
(d) State three methods of controlling specimen E. {3 marks}
The diagrams below represent two modern equipment used in commercial animal production. Use them to answer question (a), (b) and (c).
(a) ldentify the equipment labelled C and D. {2 marks}
(b) Name the parts labelled I to VIl in diagrams C and D. {7 marks}
(c) State three precautions to be observed when using each of the two equipment {6 marks}
(a) What class of manure do each of specimens A (POULTRY DROPPINGS) and B (N-P-K 15-15-15) belong to? [2 marks]
(b) List three characteristics of each of specimens A and B. [6 marks]
(c) List two precautions to be observed when applying each of specimens A and B. [4 marks]
(d) State which of the specimens is recommended to improve clay soil. Give two reasons for your answer. (3 marks]
(a) List four factors that cause a change in supply of agricultural produce [4 marks]
(b) Distinguish between fixed cost and variable cost giving two examples in each case [6 marks]
(c) Example the following agricultural extension teaching methods: (i) posters; (ii) field trips. [6 marks]
(a) Define: (i) demand; (ii) price elasticity of demand [4 marks]
(b) Explain why the demand curve slopes downwards. [2 marks]
(c) List four agents of agricultural marketing [4 marks]
(d) State two advantages and one disadvantge of each of the following agricultural extension teaching methods; (i) newspapers; (ii) television [6 marks]
(a) List four methods of identification in cattle production [4 marks]
(b) State three reasons for carrying out each of the following animal husbandry practices; (i) culling of poultry; (ii) dehorning of cattle. [6 marks]
(c) Mention the botanical names of four pasture legumes grown in West Africa [4 marks]
(d) State four ways of preserving harvested fish [2 marks]
(a) Name four breeds of rabbits. [2 marks]
(b) Give two reasons why oestrus detection is important in farm animals. [2 marks]
(c) State four functions of each of the following hormones in farm animals. (i) androgen; (ii) oestrogen. [8 marks]
(d)(i) List two viral diseases of poultry. (ii) List two ecto-parasites of poultry [4 marks]
(a) Define crop improvement. [2 marks]
(b) Copy and complet the table below based on Mendel’s Law of Indepen-dent Assortment of Genes (Dihybrid inheritance).
| TC | Tc | tC | tc | |
| TC | TTCC | |||
| Tc | Ttcc | |||
| tC | ttCc | |||
| tc | ttcC |
Use the following information: T = Tall; C = Coloured; t = Dwarf; c = White. (Where T and C are dominant character; while t and c are recessive TC TTCC characters) [6 marks]
(c) Calculate the percentage of plants in (b) above that are: (i) Tall coloured; (ii) Tall white; (iii) Dwarf coloured; (iv) Dwarf Tc Ttcc white [8 marks]
(a)(i) Define crop rotation. [2 marks] (ii) Design a four-year crop rotation system using yam, cassava, maize and groundnut. [8 marks]
(b) State four reasons why weeds are difficult to control. [4 marks]
(c) Mention ‘two effects of diseases on crop production [2 marks]
(a) Define soil erosion. [2 marks]
(b) List four factors that influence nutrient availability in the soil. [4 marks]
(c) Explain two roles of each of the following factors in soil formation: (i) climate; (ii) living organisms; (iii) topography. [6 marks]
(d) State four problems associated with overhead irrigation [4 marks]
(a) Define the term soil. [2 marks]
(b)(i) List the four components of soil. [2 marks] (ii) State the percentage of each component by volume. [2 marks]
(c) Describe the process involved in making compost using the pit method under the following headings: (i) materials; [2 marks](i ) preparation; [6 marks] (iii) storage [2 marks]
(a)(i) Explain the term farm surveying. [2 marks] (ii) State four reasons why farm surveying is important [4 marks]
(b) Enumerate six problems facing agricultural development in West Africa.
(c) List four factors that may affect the efficiency of draught animals. [4 marks]
(a)(i) Define agriculture [2 marks] (ii) List six branches of agriculture [3 marks]
(b) State five differences between commercial agriculture and subsistence agriculture [5 marks]
(c) State three merits and three demerits of using animal power on the farm. [6 marks]
The process which a farmer goes through from the time he hears about a new idea till he finally accepts it, is referred to as
- A. evolution
- B. revolution
- C. diffusion
- D. adoption
The aims and objectives of agricultural extension education do not include
- A. educating farmers on the use of new tools
- B. educating farmers on government annual budgets
- C. encouraging farmers to obtain loans for farming
- D. encouraging farmers to use meteorological information in farming
A tractor with an expected life of 10 years was bought for Le 15.om at the end of which it was to be sold for Le 1.0m. Its calculated depreciation is
- A. Le 1.4m
- B. Le 1.5m
- C. Le 1.6m
- D. Le 1.7m
Agricultural business is difficult to insure in West Africa mainly because
- A. agricultural production is not very profitable
- B. agricultural production is highly risky
- C. many farmers are very poor
- D. the premium is high
A farm business makes profit when
- A. total revenue equals total cost
- B. total exceeds total revenue
- C. total revenue exceed total cost
- D. average cost equals total revenue
How can the offspring of a bull continue to be produced long after its death?
- A. using the preserved semen for artificial insemination
- B. collecting the semen of the offspring for use in artificial insemination
- C. crossing the male and female offspring
- D. preserving the body of the dead animal
An illegal method of harvesting fish is by the sue of
- A. drag net
- B. potassium cyanide
- C. hook and line
- D. calcium carbonate