BIOLOGY 2023 QUESTION AND ANSWERS

BIOLOGY WAEC ANSWERS 2023

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☑️ EXAM SECRET ANSWERS SALUTION TEAM

☑️Subject: BIOLOGY

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BIOLOGY OBJ

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11-20: DBCBABCBAC

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QUESTIONS 1

(1a)

The classification of living things involves grouping organisms based on their characteristics. The current classification system consists of Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species.

(1bi)

-Fungi-

(i)Decomposition- Fungi decompose organic matter and recycle nutrients, contributing to soil health.

(ii)Medicine- Some fungi are used in medicine, such as Penicillium, which produces antibiotics.

(iii)Food- Edible mushrooms are a popular food item across the world. Certain fungi like yeast are used in baking and fermentation to produce wine and beer.

(iv)Industry- Fungi are used in industries like paper manufacturing and in the production of enzymes like citric acid and gluconic acid.

(1bii)

-Plants-

(i)Food- Plants are a major source of food for humans and animals.

(ii)Oxygen production- Through photosynthesis, green plants produce oxygen which is essential to all living organisms.

(iii)Raw materials- Fibers are obtained from plants and are used to make clothing, paper, and other products. Plants like timber and bamboo are used for construction purposes.

(iv) Medicine- Many plants contain compounds with medicinal properties that are used in traditional medicine and pharmaceutical industry.

(1c)

(i) Cnidaria; Hydra

(ii) Nematoda; Ascaris

(iii) Chordata; Dog, cat

(iv) Annelida ; Earthworm, leeches

(v) Mullusca; Snail, slugs, limpets

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QUESTIONS 2