Correct Answer: D. utility can only be ranked

Explanation

lkeja Senior High School,

Oba Akinjobi Road,

G.R.A. lkeja.

16th June, 2007

The Chairman,

Board of Governors,

Ikeja Senior High School,

G.R.A. Ikeja.

Dear Sir.

REQUEST FOR A STANDARD LIBRARY IN MY SCHOOL

I am writing on behalf of the entire student body requesting for a standard library for our school.

First and foremost, I want to sincerely thank the board for all the assistance they have been rendering to our school. Every student in the school appreciates you and I believe that we are proud of being associated with you. It is our belief that you will not relent in your efforts to give the school the best it needs to keep the flag of this great institution flying.

The effort you put up to meet our need for a school bus still remains evergreen in our memory. We are grateful for it and there is no place we get to with the school bus that our school is not respected.

However, this time around. we need a standard library in our school. As our beloved parents, we trust you to give us the best so that we can continue to do everything possible to ensure that we continue to put in our best in ensuring that this school has the best result every year.

Sir, you will agree with me that the importance of library in a school such as ours cannot be over-emphasized. Firstly, it will curb the habit of students roaming the school during their free periods. With the library built, no student will have the excuse for roaming the school premises. I know that the students will prefer to make use of the library adequately.

Secondly. the present age of technology calls for adequate information and knowledge to keep on updating our awareness on what is obtainable in the present age. We need standard textbooks on all the subjects offered in the school and computers so as to make the students computer literate. We would ever be grateful if you could provide the school with computers as one of the materials we need in the library. I want to assure you that if the school is provided with a well-equipped library, it will become one of the best schools in the country.

In addition. provision of a well-equipped library in our school will further improve the reading culture which the school administration is recently trying to inculcate in us. You will agree with me that if the school is provided with a library, students will no longer have any excuse whatsoever not to go there to borrow books and novels which they can read.

We know that it will cost a lot of money to build the library but we have no other Board of Governors that we can ask to provide a library for us. We believe that you and other members of the board can build the library and equip it for the school. We would ever be grateful if the request could be granted.

Yours faithfully,

(Signature)

Taiwo Adeoye Latilo.

Explanation

(a)Breeds of Rabbits New Zealand white, California white, Chinchilla, Giant Flemish, New Zealand red, Champagne D'argent, Checkered giants, Beveren, Angora, Dutch, Loop, English Spot, Crosses

(b) Reasons why oestrus detection is important in farm animals - Enables the farmer to know when best his animals can be serviced - Enables the farmer to properly manage the animal - Enables the farmer to start preparation for the impending pregnancy.

(c) Functions of hormones in farm animals (

i) Androgen - Initiate spermatogenesis (sperm formation)

- Is responsible for the initiation of male secondary sex characteristics

- Maintains the sex drive (Libido)

- Enhances muscular and skeletal growth

- Reduces fat deposition

- Promotes the growth of accessory sex glands

- Sustains the life of sperms in the epididymis

(ii) Oestrogen

- Stimulates the development of female secondary sex characteristics e.g. heat behaviour

- Promotes the production of eggs through oogenesis

- It is concerned with the preparation of the uterus lining for the reception of the fertilized ovum

- It increases blood supply as well as the water content of the uterus

- It stimulates the growth of the duct system in the mammary glands (udder)

- in the oviduct, it increases cilliary activities and mucous secretion.

- Induces the rapid multiplication of epithelum in the vagina

(d)(i) Viral diseases of poultry: Newcastle, Gumboro, Mareks, Bird Flu/Avian • influenza, Fowl pox

(ii) Feto-parasites of poultry: Lice, Mites, Flea, Ticks

Correct Answer: C. causes day and night

Correct Answer: B. Bakolori

Correct Answer: C) sperm cell

Explanation

Human somatic cells are cells that make up the body of an individual, excluding the reproductive cells (sperm and egg cells). These cells contain 23 pairs of chromosomes, with one chromosome in each pair inherited from each parent. One of these pairs is the sex chromosomes, which determines the sex of the individual. Females have two X chromosomes (XX), while males have one X and one Y chromosome (XY). The question is asking where the chromosome that is not found in somatic cells is located. The correct answer is option C: sperm cell. This is because the sperm cell provides the other half of the genetic material needed to form a zygote during fertilization. The sperm cell contains either an X or a Y chromosome, which determines the sex of the offspring. It is important to note that the chromosome that is not found in somatic cells is the one that determines the sex of the individual, and this is because the somatic cells already contain the other sex chromosome. For example, in females, the somatic cells contain two X chromosomes, so the missing chromosome is the Y chromosome. To learn more about this, please read the relevant sections of the recommended textbooks.

Explanation

(a) Hot Desert Climate

Location:Found within latitude 15°— 30°North and South of the Equator. It is mostly common in the Western side of continents. Examples are North Africa (Sahara desertss); Arabia (Arabian desert), Iran (Iranian desert); Southern Africa (Namib and Kalahari deserts); Australia (Great Australian desert); South America (Atacama desert). Hot desert can as well be located on plateaux such as Gobi, and Turkestan, Patagonia desert

Characteristics

(i) High temperature of about 50° — 77°C.

(ii) Annual range of temperature is about 11°C

(iii) It is rainless or arid Annual rainfall is low and less than 250mm

(v) High evaporation ratio due to high temperature

(vi) Relative humidity is low and about 30%

(vii) Mostly affected by the currents e.g Canary cold current affecting the Sahara desert.

(viii) Solar radiation and sunshine hours are high throughout the year.

(ix) Rainfall is convectional, hence sudden and violent

(x) Clear sky

(xi) Soil is sandy, rocky or stony

Vegetation

(1) The existence of sparse and scanty vegetation.

(2) Examples are grasses, shrubs and herbs

(3) Most plants are drought-resistant (Xerophytes)

(4) Example of plants are Acacia, Date palm, Cactus

Some plants are salt tolerant (Halophytes)

(6) Plants usually possess long root to tap water from the underground

(7) Some plants have thick succulent stems to conserve water

(8) Small, waxy, leathery, hairy / needle leaves to reduce transpiration.

Human Activity

(i) Food gathering, especially of fruits and nuts

(ii) Hunting for wild animals

(iii) Pastoral farming Crop cultivation particularly of grains with irrigation e.g millet, sorghum,

(v) Trading and mining also exist.

Correct Answer: A. male ascendancy

Correct Answer: D. indent

Correct Answer: C. robbing