(a) ldentify specimens O and P.
Specimen O; Specimen P;
(b) State three farm animals which do not possess specimen O
(c) (i) Name two farm animals in which both sexes possess specimen O.
(ii) State one farm animal in which only one sex of the species possesses specimen O.
(d) State two functions of each of the specimens O and P to the animals that possess them.
(e) Mention three problems that a farmer may encounter in the management of animals which possess specimen O.
Explanation
(a) ldentification of specimen O and specimen P;
- Specimen O - Animal horn
- Specimen P - Animal skin/animal hide
(b) Farm animals which do not possess specimen O (Animal horn)
- Poultry
- Swine/pig
- Rabbit
- Guinea pig
- Donkey
- Horse
- Camel
(c)(i) Farm animals in which both sexes possess specimen O (Animal horn)
- Cattle
- Goats
(ii) Farm animal in which only one sex of the species possesses specimen O;
- Sheep
(d) Functions of specimen 0 (Animal horn) and Functions of Specimen P (Animal skin)
Functions of Animal Horn;
- For defence.
- For attack/offence
- For scratching the body.
- Enhances the appearance of the animal possessing it.
Functions of Animal skin ;
- It manufactures vitamin D, with the aid of sunlight.
- Storage of reserved food (fat) under the skin.
- For protection of the body organs/insulation.
- For temperature regulation of the body.
- Excretion through sweating.
- Response to environmental stimulus.
- Milk secretion through the mammary gland.
(e) Problems a farmer may encounter in the management of animals which possess specimen O (Animal horn)
- Problems of space when transporting the animals.
- Animal may injure the owner or herdsmen with the horns.
- Animal may injure one another with the horns.
- Animal may use horns to destroy buildings and Other farm structures.
- Animals with horns bully their young ones and those without horns
- Requires larger housing space and more pens spaces.