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2020 WAEC Biology Practical  Study Specimens E, F, and H and answer questions 2(a) to 2(f). (a) What types...

Biology
WAEC 2020

 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.

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Explanation

(a) Type of Fruits of Specimens E/Pawpaw fruit, F/Tomato fruit and H/Pod of Pride of Barbados: (b) Placentation of Fruits of Specimens E/Pawpaw fruit and F E: Berry F: Berry H: Legume.

(b) Placentation of Fruits of Specimens E/Pawpaw fruit and F Tomato fruit. E: Parietal F: Axile.

(c) Agents of Dispersal of Specimens E/Pawpaw fruit, F/ Tomato fruit and H/Pod of Pride of Barbados: E:

Man/Human/animal/any correctly named animal F: Man/Human /animal/any correctly named animal H: Explosive mechanism

(d)i) Explanation of how Specimen E is dispersed:-The epicarp is brightly colored;-Which attracts man/humans/ animal/correctly named animal; -To eat its succulent parts (mesocarp and endocarp);-then eventually -Which attracted man/humans/ throws away its seed/plants it.

(ii) Nutrient present in Specimen E: -Vitamins; -Carbohydrate -Protein/amino acid/calcium/magnesium/potassium/zinc/phosphorus/iron/

Carbohydrate: fructose/sucrose/sugars copper/manganese;    -Mineral salts; -Water; -Riboflavin

(e) Color of Specimen H: Green. (ii) Significance of the Color of Specimen : It indicates that the fruit contains chlorophyll / is photosynthetic.

(f(i)) Type of Placentation of Specimen H: Marginal.

 

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WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709