(a) Study carefully specimens A and B and use them to answer questions 1(a) to 1(c).
(a)(i) Name the types of fruit in specimens A and B with reasons.
(ii) Make a drawing, 8-10cm long of the lateral view of specimen B and label fully.
(b) Describe the modes of dispersal of specimens A and B.
(c) In a tabular form, state five differences between specimens A and B.
Explanation
(a)(I)Types of fruits: Garden Egg/A-Berry. Reason: It has a fleshy pericarp with many seeds embedded in it. Tridax B-Cypsela. Reason: Fruit bears a hairy calyx/hairy pappus/parachute. Dry single seeded fruit.
(c)
|
Specimen A (Garden Egg) |
Specimen B (Tridax frut) |
|
Fleshy pericarp |
Dry pericarp |
|
Smooth epicarp/fruit wall |
Hairy epicarp |
|
No pappus |
Pappus present |
|
Calyx beneath fruit |
Calyx (pappus) on top of fruit |
|
Calyx present |
Calyx modified into pappus |
|
Large fruit |
Small fruit |
|
Heavy fruit |
Light (in weight) fruit |
|
Green/white/yellow in colour |
Brown in colour |