You are provided with a mirror and you are required to hold it up until the image of the face is reflected on the surface of the mirror. Observe all sense organs on the mirror by touching them and then answer the questions that follow: (a) What were the sense organs observed on the surface of the mirror? (b) (i) Identify the sense organ responsible for hearing. (ii) What nervous mechanism enables your hearing sense organs to recognize the sound? (c) (i) Identify the sense organ responsible for vision. (ii) What type of stimuli was perceived by the organ mentioned in (c)(i)? (d) Draw a well labelled diagram of the sense organ for vision to show the front view as you can see it on the surface of the mirror. (e) Using any three labelled parts in (d) as a reference; explain what will happen in your daily life if the parts are seriously damaged.

1. What were the sense organs observed on the surface of the mirror? (2 mk)
2. Identify the sense organ responsible for hearing. (1 mk)
3. What nervous mechanism enables your hearing sense organs to recognize the sound? (4 mk)
4. Identify the sense organ responsible for vision. (1 mk)
5. What type of stimuli was perceived by the organ mentioned in (c)(i)? (2 mk)
6. Draw a well labelled diagram of the sense organ for vision to show the front view as you can see it on the surface of the mirror. (8 mk)
7. Using any three labelled parts in (d) as a reference; explain what will happen in your daily life if the parts are seriously damaged. (7 mk)

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You are provided with specimens T, U and V, study them carefully and answer the questions that follow: (a) (i) Classify the specimens T and V to Class level. (ii) Give two observable distinctive structures of each of the specimens T and V used to place them in their respective Classes. (b) (i) Give the habitat for each of the specimens U and V. (ii) How do the specimens U and V adapted to their habitats? Give three points for each. (c) Why the specimen V dies when taken out of its habitat? (d) (i) Why the specimen U was formally placed in the Kingdom Plantae? Give two reasons. (ii) State three economic importance of the specimen U in our daily lives.

1. Classify the specimens T and V to Class level. (2 mk)
2. Give two observable distinctive structures of each of the specimens T and V used to place them in their respective Classes. (4 mk)
3. Give the habitat for each of the specimens U and V. (2 mk)
4. How do the specimens U and V adapted to their habitats? Give three points for each. (6 mk)
5. Why the specimen V dies when taken out of its habitat? (3 mk)
6. Why the specimen U was formally placed in the Kingdom Plantae? Give two reasons. (2 mk)
7. State three economic importance of the specimen U in our daily lives. (6 mk)

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