Explanation

(a) Difference between tropic movement and nastic movement

(b) How light brings about tropic movement in stem and root of a flowering plant:

(i) When unilateral light falls on the stem, the auxin/growth hormone/IAA is displaced from the lighted to the dark side.

(ii) The increase in auxin concentration on the dark side increases growth on that side causing the stem to bend towards the light/positive phototropism.

Roots:

(i) The auxin is displaced from the lighted side to the dark side.

(ii) The increase in auxin concentration retards growth on the dark side causing the root to bend away from the light/negative phototropism.

(c) The following would be observed when a growing seedling is placed horizontally:

(i) Shoot bends upwards, showing negative geotropism/positive phototropism.

(ii) Root bends downwards, showing positive geotropism/negative phototropism.

(d) Functions of the Pituitary gland:

(i) Stimulates growth/growth of long bones/cell division.

(ii) Stimulates production of sex-hormones/named sex hormones.

(iii) Stimulates production of anti-diuretic hormone/ADH/regulation of water re-absorption in the kidney/osmos regulation.

(iv) Produces hormones which control other endocrine glands/stimulates thyroid gland/adrenal cortex.

(v) Stimulates protein synthesis.

(vi) Induces birth by contraction of uterine muscles/production of oxytoxin.

(vii) Induces milk secretion/produces prolactin.

(viii) Controls egg and sperm production.

(e) Differences between growth in plants and animals:

Correct Answer: D. made more cash payments than it received during the period

Correct Answer: C. weight of fluid in which it foats

Explanation

A floating object displaces a weight of fluid equal to its own weigh

Correct Answer: A. Operation Feed the Nation

Correct Answer: B. beauty and its appreciation

Correct Answer: B. hazard

Correct Answer: B. 14.5

Explanation

Median is to find the middle number arranging from smallest to greatest. So we have 2,8,13,16,26,34. The two middle numbers in the set is 13,16. We then find the average which is 29/2 or 14.5.

Correct Answer: A. 2

Explanation

16\(^{0.16}\) × 16\(^{0.04}\) × 2\(^{0.2}\)

=2\(^{4(0.16)}\) × 2\(^{4(0.04)}\) × 2\(^{0.2}\)

=2\(^{0.64}\) × 2\(^{0.16}\) × 2\(^{0.2}\)

=2\(^{0.64\times0.16\times0.2}\)

=2\(^1\)

2

Explanation

(a) After the death of Solomon, Rehoboam went to Schechem for his coronation. At this time, Northern Israel was under the leadership of Jeroboam who came and said to Rehoboam, "your father made our yoke heavy. Therefore, lighten the hard service of your father and we will serve you". Rehoboam requested that they should give him three days and come back thereafter. Rehoboam took counsel with his father's advisers who told him to hearken to the people's request, but he did not take to the advice of the elders. Rather he listened to the advice of his age mates who advised him to even increase the burden of the people. Jeroboam and all the people of Israel came to Rehoboam on the third day and the king spoke to them according to the counsel of the young men. Israel then reacted, "What portion have we in David? We have no inheritance in the son of Jesse, to your tents 0 Israel." Israel then departed to their tents and Rehoboam reigned over Judah.

(b) Solomon's unwise policies which led to the division of the kingdom were:

(1) Solomon's imposition of heavy tax

(2) Solomon's introduction of hard labour

(3) Solomon's marriage to foreign women and their gods.

Correct Answer: B. farce to comment on societal conduct