Correct Answer: B. Euglena

Correct Answer: C. whom

Explanation

The correct answer is 'whom'. In English grammar, 'whom' is used as the object of a verb or preposition. In this sentence, 'the man' is the object of the verb 'told'. Therefore, 'whom' is the appropriate word to use.

Correct Answer: A) Low melting point

Correct Answer: B. It is a capital intensive

Correct Answer: C. the missionaries were to travel without heavy luggage

Correct Answer: D) There are few number of organisms at the start of a food chain

Explanation

This Biology question is asking which of the statements is inconsistent with the concept of trophic structure. Trophic structure refers to the feeding relationships between different organisms in an ecosystem, and it involves the transfer of energy and nutrients. The options given are A, B, C, and D. Option A states that at every feeding stage, some energy is wasted from the chain. This is a consistent statement with the concept of trophic structure because as energy is transferred from one trophic level to the next, some energy is always lost in the form of heat or other metabolic processes. Option B states that the nearer the organism to the beginning of a food chain, the greater the available energy of the organism. This is also a consistent statement because organisms at the beginning of a food chain, such as autotrophs, have access to more energy from the sun or other sources than organisms higher up in the food chain. Option C states that the first trophic level is occupied by the autotrophs. This is a consistent statement because autotrophs are the primary producers in an ecosystem and are therefore at the first trophic level. Option D, which is the correct answer, states that there are few numbers of organisms at the start of a food chain. This statement is inconsistent with the concept of trophic structure because the start of a food chain usually has the highest number of organisms, such as plants, which are eaten by herbivores, which in turn are eaten by predators. In summary, all the options except option D are consistent with the concept of trophic structure, which is the feeding relationships and transfer of energy and nutrients in an ecosystem.

Explanation

(i) Existence of an impartial and independent electoral commission.

(ii) Periodic and regular elections.

(iii) Proper delineation of the country into constituencies/districts.

(iv) Compilation and availability of comprehensive votes register.

(v) Regular and periodic public display of voters' list.

(vi) Polling offices and officers, ballot boxes and papers and other necessary election personnel and materials should be adequately provided.

(vii) Voting atmosphere devoid of fear of molestation intimidation and victimization.

(viii) The requirement for qualification for election must be clearly stipulated and adequately publicized.

(ix) Counting of ballot papers/votes should be publicly done and the results declared immediately.

(x) All elections materials should be tightly secured.

(xi) The electorate should be given adequate political education.

(xii) Equal access to the media by candidates and political education.

(xiii) Existence of an Independent Judiciary

(xiv) Opportunity, to challenge election results.

(xv) Existence of multi-party system.

Explanation

(a) \(a = 3; d = 4 ; n = 28\)

\(S_{n} = \frac{n}{2}(2a + (n - 1)d)\)

\(S_{28} = \frac{28}{2}(2(3) + (28 - 1) 4)\)

= \(14(6 + 108)\)

= \(14(114)\)

= \(1596\)

(b) \(x = \frac{2m}{1 - m^{2}} ; y = \frac{2m}{1 + m}\)

\(2x - y = 2(\frac{2m}{1 - m^{2}}) - (\frac{2m}{1 + m})\)

= \(\frac{4m}{1 - m^{2}} - \frac{2m}{1 + m}\)

= \(\frac{4m - 2m(1 - m)}{1 - m^{2}}\)

= \(\frac{4m - 2m + 2m^{2}}{1 - m^{2}}\)

= \(\frac{2m^{2} + 2m}{1 - m^{2}}\)

= \(\frac{2m(m + 1)}{(1 + m)(1 - m)}\)

= \(\frac{2m}{1 - m}\)

(c) Sum of interior angles = (2n - 4)90°

When n = 5 (pentagon),

= \((2(5) - 4) \times 90°\)

= \(540°\)

\(x + 2x + 3x + 2x + (3x - 10) = 11x - 10\)

= \(11x - 10 = 540°\)

= \(11x = 550°\)

= \(x = 50°\)

Correct Answer: D. 140°

Correct Answer: B. Conscience