(a)(i) Name five processes involved in the production of specimen G (ii) Mention two uses of specimen G.
(b). Give three ways in which specimen H is of importance to humans.
(c). State two functions of specimen J in its host.
(d)(i) Name one management practice that could be carried out on specimen J. (ii) Give two reasons for carrying out the management practice named in 3 (d) (i).
(a). i. Processes involved in the production of Specimen G (Leather) -Preservation (salting, drying, or freezing). -Soaking.-liming.Deliming. -Fleshing. - Splitting. - Pickling/salting. degreasing. - Washing. Dyeing. Lanning.- Neutralizing. – Withering. sorting. -Shaving.-Drying. - Softening/ conditioning, – finishing (ii). Uses of špecimen G (Leather) - Clothing. – Footwear. - Furniture/upholstery.- Decoration. -Tools/handle of tools. Bags/purse/ wallet. - Belt. - jewelries. - Sports equipment (football, gloves). - Sheath/scabbard/book covers/ cases. Mats. - musical instrument.
(b) Importance of Specimen H (African giant land snail) to humans. - serves as food. - Shell used in compounding feed. - Medicinal. - religious purposes. - Used in cosmetic industry. -hobby/leisure. - Ornamental purposes/decoration. - Shell is used as an abrasive. - Research. -Sources of Foreign Exchange. - Source of employment. - liming of acidic soil. -Source of income.
(c) Functions of Specimen J (Testes of ruminant) in its host. Synthesis of sperm cells. - Production of hormones (testosterone). - Storage of sperm cells. - Release of sperm cells during ejaculation/coitus. - Regulation of reproductive functions.
(d)(i). Management practice that could be carried out on specimen J (Testes of ruminant) - castration (ii). Reasons for carrying out castration: - Removes male odour. – Prevents indiscriminate mating/unwanted Breeding.-Enhances growth/at deposit.- Makes male animal docile, -Improves the taste of meat/improves meat quality. – Ease management.
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