Observe specimens A, B, C and D closely and use them to answer questions 1(a) to 1(e).
(a)(i) Specimen A Into its division and class.
(ii) State three observable features of specimen A which are characteristics of the class mentioned in 1(a)(i) above.
(b) State the relationship between specimen A and: (i) specimen B; (ii) specimen C; (iii) specimen D.
(c)(i) From. your observations of specimens B and C, what type of plant is specimen A? (ii) Suggest the agent of pollination ot specimen B.
(iii) State two reasons for the answer in 1(c)(i) above.
(d) Classify specimen D fully according to origin and structure.
(e) Make a drawing 8 cm 10 cm long of specimen C and label fully.
Explanation
(a)(i) Classification of Specimen A: Division- Angiospermatophyta/Angiospermophyta/Magnoliophyta/Tracheophyta.
Class Monocotyledoneae/Liliopsida., (ii) Observable features of the Specimen A.
- presence of narrow leaf/leave
-Fibrous roots.
- Parallel venation on leaf,
- Presence of leaf sheath.
(b) Relationship between Specimen A and Specimen B, C, and D:
B is male flower(s), male nflorescence of A .
C-is the female flower(s) female inflorescence of A.
D- is the fruit/seed of A.
(c)(i)Type of plant: A monoecious plant. (ii) Agent of pollination: Wind (not wind pollination or wind pollinated flower).
(iii) Reasons: - The flowers are dull in colour.
- The flowers are small/incospiscous
- Flowers lacks scent.
-The stigmas are borne on long flexible stvle/stigmas hand out to expose themselves to pollen grains.
- The stigmas are feathery.
(d) Full classification of Specimen D according to origin and structure: True; simple, dry indehiscent, caryopsis.
