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Carolus Linnaeus is the father of taxonomy, which is the system of classifying and naming organisms. One of his contributions was the development of a hierarchical system of classification of nature. Today, this system includes eight taxa: domain, kingdom, phylum, class, order, family, genus, and species.

The hump present in the camel helps them travel long periods without water to survive in the desert's harsh conditions. Thus the hump acts as a fat reserve or an energy reserve.

Similar cytoplasmic bridges link the cells of all volvocacean embryos. I.e neighboring cells are often joined together by strands of cytoplasm.

Volvox is a polyphyletic genus of chlorophyte green algae in the family Volvocaceae. It forms spherical colonies of up to 50,000 cells. Its plant body is coenobium and consists of large number of biflagellate, pear-shaped cells.

No expanded working has been attached for this question yet. The verified answer is Option D.

The water activates special proteins, called enzymes, that begin the process of seed growth.

Average speed = \(\frac{total Distance}{Total Time}\) from Calabar to Enugu in time t1, hence t1 = \(\frac{P}{U}\) Also from Enugu to Benin t2 \(\frac{q}{w}\) Av. speed = \(\frac{p + q}{t_1 + t_2}\) = \(\frac{p + q}{p/u + q/w}\) = p + q x \(\frac{uw}{pw + qu}\) = \(\frac{uw(p + q)}{pw + qu}\)

Using the trial expansion of each option (m\(^2\) + 2) (m - 1) OR Group the terms (\(m^3 - m^2\)) + ( 2m - 2) \(m^2\)(m - 1) + 2(m - 1) (m-1)(\(m^2\) + 2)

81a\(^4\) - 16b\(^4\) = (9a\(^2\))\(^2\) - (4b\(^2\))\(^2\) = (9a\(^2\) + 4b\(^2\))(9a\(^2\) - 4b\(^2\)) N:B 9a\(^2\) - 4b\(^2\) = (3a - 2b)(3a + 2b)

Let the three items be M, Y and P. n{M ∩ Y} only = 4-3 = 1 n{M ∩ P) only = 5-3 = 2 n{ Y ∩ P} only = 2 n{M} only = 12-(1+3+2) = 6 n{Y} only = 10-(1+2+3) = 4 n{P} only = 14-(2+3+2) = 7 n{M∩P∩Y} = 3 Number of women in the group = 6+4+7+(1+2+2+3) as above =25 women.

Given (x + 2) and (x - 1), i.e. x = -2 or +1 when x = -2 L(-2) + 2k(-2)\(^2\) + 24 = 0 f(-2) = -2L + 8k = -24...(i) And x = 1 L(1) + 2k(1) + 24 = 0 f(1):L + 2k = -24...(ii) Subst, L = -24 - 2k in eqn (i) -2(-24 - 2k) + 8k = -24 +48 + 4k + 8k = -24 12k = -24 - 48 = -72 k = \(frac{-72}{12}\) k = -6 where L = -24 - 2k L = -24 - 2(-6) L = -24 + 12 L = -12 That is; K = -6 and L = -12

Using elimination method: 4x+2y=16 * 6 --> 24x +12y=96 ... eqn iii 6x-2y=4 * 4 --> 24x - 8y = 16 ... eqn iv Subtract eqn iv from iii 20y = 80 y = 4 Subst. y for 4 in 4x + 2y = 16 --> 4x + 2(4) = 16 --> 4x = 16 - 8 --> 4x = 8 --> x = 2 : The value of (y-x) is 4 - 2 = 2

A for Adults C for children a + c = 500 c = 500 - a 4.5a + 3c = 1987.50 where c = 500 - a 4.5a + 3(500 - a) = 1987.50 4.5a - 3a = 1987.50 - 1500 1.5a = 487.5 a = 487.5 / 1.5 a = 325 tickets c = 500 - a c = 500 - 325 c = 175 tickets Check: from 4.5a + 3c 4.5 (325) = 1,462.5 + 3(175) = 525

A man will be (x+10) years old in 8years time. As at today, he is x + 2 years of age. The man was 63 years old 2 years ago, so he is 63+2=65 now. 8 years from now, he will be 65+8=73. He will be (x+10) years old when he is 73. So x+10=73 x=73-10=63

A rational expression is undefined when the denominator is equal to zero. when x = -1 The denominator in this equation : x + 1 --> -1 + 1 = 0 This expression is undefined when x = -1