1 (a) (i) identify specimens A and B without reasons  (ii) Give four differences between specimens A and B .

Using a sharp knife, scalpel or blade, cut specimen B into two equal halves to expose the internal structures.

b. (i) Make a labeled drawing of 8 cm to 10cm long to show the observable internal structures of specimen B.

(ii) State the dispersal mechanism of specimen B.

(C)(i) Identify  C, D and E without reasons. (ii) State two features, each of specimen C, D and E which adapt  to their habitats. 

2. The height (cm) of 20 students in a class are as follows:.155, 157, 151 169, 162, 151, 149, 165, 169,176.169, 179,173, 179, 173, 169, 157, 155, 165, 157, 197 and 162.

Use them to answer the following questions:

(a) Make a frequency distribution table of class interval of five of the different heights  (b) what is the modal height? (ii) median height? (ii) mean height? 

 (c) (i) Construct a histogram showing the variation of height, amongst the students with the heights on the horizontal number of students on the vertical axis.

 (ii) How many students fall into each or the height axis and number of students on the vertical axis.

 (iii) How many students have height between 155 and 179?

 (iv) Find the difference in height between shortest and the tallest students. 

(d) (i)What type of variation is height? (ii) Mention three other examples of the type of variation in (d) (i) above.

3.(a) identify specimen F, G, H, I, J, and K without reasons. (b)(i) State one observable feature by which each of specimens F,G and H obtain their food. 

(ii) State three observable features which contribute to the survival of specimen I. 

(c)Mention two observable characteristics each, of specimens J and K. (ii) Name the two bones, each, which articulates with specimens J and K 

(iii) Make a labeled drawing of 8cm to 10 cm long of specimens K.

1. Study Specimens B, C and D and answer questions 1(a) To 1(f).

(a) i) Place two drops of specimen B on a white tile and add two drops of iodine solution.

Complete the table below with the test, observation and inference:

(aii) Put 5 ml of specimen B into a test tube and add 2 ml of sodium hydroxide solution followed by three drops of copper (ii) tetraoxosulphate (VI) solution and shake Complete the table below with the test, observation and inference.

(b) Give the name of each of the tests in 1(a)i) and 1(a)(ii). (i) ____________   (ii) _____________

(c) State two ways by which specimen C is of economic importance.

(d)(i) Name the Kingdom to (1) (ii) which specimen C belongs. (ii) State three reasons for the. answer in 1(d)(i). (iii) Name four other organisms that belong to the same Kingdom as specimen C.

(ei) Name the Phylum to which specimen D belongs. (ii) State three reasons for the answer in 1(d)(i).

(f)(i) Explain briefly the role of specimen C in nutrient cycling. (ii) What is the mode of nutrition of specimen C.

. Study specimens A and B and answer questions 1(a) to 1(c).

(a)(i) Name the habitat of each of specimens A and B.  (ii) Name the adult stages into which each of specimens A and B would develop.

(iii) Name the phylum and class common to the adult stages into which each of specimens A and B.

(b) State three observable features of biological significance in: (i) specimen A (ii) specimens B.

(c)(i) State four observable structural differences between specimens A and B.

    (ii) State three observable similarities between specimens A and B.

2. Study specimens C, D and E and answer questions 2(a) to 2(c).

 (a)(i) Name the organism from which each of  specimens C, D and E are obtained.

     (ii) State the function common to  specimens C, D and E.

     (iii) State three observable features which adapts specimen C to its function.

(b)(i) State three observable structural similarities between specimens C and D.

    (ii) State three observable structural differences between specimens C and D.

(c) Make a drawing 6cm - 8cm long of specimen C and label fully.

(3)  Study specimens K and L and answer questions 3(a) to 3(c).

(a)(i) Name the floral parts of specimen K.  (ii) Indicate the number of the floral parts in each whorl of specimen K.

(b)(i) Name the sex of specimen K.  (ii) Give one reason for your answer in 3(b)(i).

(c)(i) What is the symmetry of specimen K?.  (ii) Give one reason for your answer in 3(c)(i).

(d) Name one pollinating agent of each of specimens K and L.

(e) State four observable structural differences between specimens K and L.

(f) Make a drawing 8cm - 10cm long of specimen K and label fully.

 Study Specimens E, F, and H and answer questions 2(a) to 2(f).

(a) What types of fruits are specimens E, F, and H?

E: _________   F:_________  H: ___________

(b) Name the types of placentation possessed by each of specimens E, F and H:

(c) Name one agent of dispersal each of specimens E, F and H? E: H: F: F:

(d)(i) Explain briefly how specimen E is dispersed. (ii) State two types of nutrients present in specimen E.

(e)(i) What is the color of specimen H? (ii) What does the color of specimen H signify?

(f) Using the scalpel/blunt knife provided, cut open specimen H along the line of split from one side only.

(i) Name the type of placentation found in specimen H.

(ii) Make a drawing, 6 cm to 8 cm long of the two split halves of specimen H while still joined at one length and label fully.

 Study Specimens P, Q and R and answer questions 4(a) to 4(d).

(a) Use the information below to complete the following table. (i) Add two drops of specimen P into a beaker containing water, leave it undisturbed and note the time it completely disperses in water. (ii) Add a leveled teaspoonful of specimen Q into another beaker containing water, stir for one second and note the time it takes to completely dissolve. (iii) Cut open specimen R and note the time the odor was perceived. (iv) Give the medium of spread for each of the tests in 4(a)(i) to 4(a) i).

(v) Name the sense organ in humans involved in each of the observations in 4(a)(i) to 4(a)(iii).

(b) Name the biological phenomenon that occurred in 4(a)(iii).

(c) State two factors each that will increase the rate of the phenomenon named in 4(b) for each of the activities in 4(a)(i). (ii) and (iii)

(i) _____________  (ii)  _____________  (iii) _____________

(d) Gently place your thumb on the inked stamp pad provided. (i) Neatly thumbprint clearly showing the pattern in the box below.

(ii) Name the type of pattern in the fingerprint in 4(e)(i).

(iii) List three other types of fingerprints. (iv) State three advantages of fingerprints.

(v) What type of variation is fingerprint?