Correct Answer: A. heal and cleans sins

Correct Answer: C. between the focus and the pole of the mirror

Explanation

(a)Role of the stomach in digestion: The stomach receives food when the sphincter at the entrance of the stomach relaxes. The muscular walls of the stomach contract and relax, to churn/mix the food, and further break down the particles. The stomach produces gastric juices, which contain dilute hydrochloric acid/pepsin/rennin. The dilute hydrochloric acid neutralizes the action of the salivary amylase, and kills bacteria present in the food. It creates a suitable condition/pH for the action of pepsin, and activates inactive pepsinogen to form pepsin. The pepsin breaks down the protein to polypeptide/peptides. While the rennin coagulates/curdles milk to enhance digestion by pepsin. The mucus produced by the stomach wall lines the wall of the stomach to prevent the action of the acid on the stomach wall. The mucus produced by the stomach lubricates the movement of the food in the alimentary canal.

(b)(i)Parts of plants where food is stored: Leaves. Stems. Roots. Seed. Fruits.

(ii)Examples:

Leaves: Onions, shallot, garlic.

Stems: Yam, sugarcane, ginger, Irish potatoes.

Roots: Cassava, carrots, sweet potatoes.

Seed: Groundnut, beans, coconut, cashew.

Fruits: Maize, guava, orange, pawpaw, cashew, palm nut, mango.

(c) Sugar regulation in mammals: The liver controls the blood glucose levels. It converts excess glucose in the blood to glycogen. The process is stimulated by the hormone insulin, which is secreted by the pancreas. When the blood glucose level falls below normal. The pancreas secretes/glucagons. This stimulates the conversion of glycogen into glucose, which is released into the blood.

Correct Answer: A. AI, Si, P, S

Explanation

Functions of concurrent in a federation.

(a)Concurrent functions are the list of functions in a federal constitution whereby both federating units and central government can legislate and execute independently.

(b) Five features of a confederal system of government:

(i) It has a very weak center.

(ii) The confederating units are nearly autonomous.

(iii) Secession of any component unit is allowed.

(iv) It allows component units to develop at their own pace

(v) Citizens' allegiance is more to the component units than to the confederacy.

(vi) Individual units co-operate on specific areas such as foreign affairs, currency, defence, etc.

(vii) The confederal constitution is flexible.

(viii) A confederal state is politically unstable.

(ix) Each confederating unit has its own armed forces and police.

(x) The 12 confederal state depends on subventions from the units.

Correct Answer: C. the situation was just desperate

Explanation

If you keep the wolf from the door, you succeed in providing food and other necessary things for yourself or your family. the question said the money was barely enough, meaning they were in desperate situation to survive at that point

Correct Answer: D. Commercial fishing

Explanation

a. a = (10t - 4t\(^2\))m/s\(^2\), t = t seconds, u = 0

from first equation of motion,

v = u + at

v = 0 + (10t - 4t\(^2\))t

v = (10t\(^2\) - 4t\(^3\))m/s\(^2\)

ii. average acceleration of the particle during the 4th second = the average acceleration between the t = 3 and t = 4

Δa4 = 10(t4-t3) - 4(t4-t3)\(^2\)

Δa4 = 10(4-1) - 4(4-3)\(^2\)

Δa4 = 10(1) - 4(12)

Δa4 = (10-4)m/s\(^2\)

Δa4 = 6ms-2

b. R = m(g+a)

When the lift moves with a constant velocity, a = 0

R = mg

R = 120 × 10

R = 1200N

ii. when the lift moves upward with an acceleration of 3m/s\(^2\)

R = m(g+a)

R = 120(10+3)

R = 120 × 13

R = 1560N

Explanation

(a) Nationalization; is the act of bringing an industry under exclusive state ownership and control, whereas indigenization can be viewed as policy initiatives designed to accelerate the greater participation of Nigerians in the ownership and management of business enterprises in Nigeria. Under Nationalization, the government acquires the whole of the industry and remains the only shareholder, but under indigenization, individual Nigerians within the private sector either hold the majority shares or are the only shareholders. Nationalization transfers ownership to the government not withstanding whether the business was owned by local people or foreigners while indigenization transfers ownership of foreign business to private citizens of the country.

(b) Advantages of indigenization are:

(i) It fosters and accelerates the pace of industrial development.

(ii) It affords Nigerians opportunity for self reliance and economic emancipation.

(iii) It affords Nigerians the opportunity to acquire the much needed industrial, technological know-how and ensures the development of domestic technology.

(iv) It ensures greater participation of Nigerians in the economic and business life of the country.

(v) There is saving in foreign exchange since it is cheaper to maintain an indigenous executive than a foreign executive.

(vi) It forestalls the exploitative tendency of foreign businessmen in the country.

(vii) It creates employment opportunities for the indigenes of the country.

(viii) It ensures retention of profits in the country and reduces repatriation of profits overseas.

Disadvantages of indigenization include:

(i) It discourages foreign investment, thus starving the country of the foreign capital that is needed to stimulate economic growth.

(ii) Indigenisation policy can give birth to a new breed of exploiters.

(iii) Transfer of ownership of business enterprises to Nigerian citizens did not result in a corresponding efficiency in the management of the business by the Nigerians who took over.

(iv) Indigenization can lead to capital flight.

(v) It can discourage friendship among nations

Correct Answer: C. heart