![2025 WAEC Biology Practical Answers [15th May]](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEijWptqT4I99qnDZuMifrLn4n73Ac5egdabYjPqqgI0trIVDx1hYlCsVwyqGESntqPDwMBOFwVp16CtQZPuQNI9D3WB77Y-FQs-AqLqV3nXJbytg_jSSDrj1h6oLGkZTMuRwLzfkbkpBcs/s1600/WAEC+LOGO.png "2025 WAEC Biology Practical Answers [15th May]")
Thursday, 15th May 2025
Biology 3 (Practical) (Alternative A) – 09:30am – 11:30am (1st Set)
Biology 3 (Practical) (Alternative A) –12:00pm – 2:00pm (2nd Set)
2025 WAEC BIOLOGY PRACTICAL ANSWERS [15th MAY, 2025]
(1a)
(i) Arthropoda
(ii) Insecta
(1b)
(PICK ANY THREE)
(i) It has three pairs of jointed legs.
(ii) The body is divided into head, thorax, and abdomen.
(iii) It possesses one pair of antennae.
(iv) It has compound eyes.
(v) It has two pairs of wings (in most cases), aiding in movement.
(1c)
Parasitism
(1d)
(PICK ANY TWO)
(i) Strong mandibles for boring into bean seeds.
(ii) Hard exoskeleton for protection.
(iii) Small, compact body to enter seeds easily.
(iv) Well-developed antennae for detecting host seeds.
(1e)
(PICK ANY TWO)
(i) Sun-drying to reduce moisture content.
(ii) Storing in airtight containers.
(iii) Applying insecticides or natural repellents.
(iv) Keeping in cool, dry storage facilities.
(1fi)
(PICK ANY TWO)
(i) Used as a source of food for humans.
(ii) Used as animal feed.
(iii) Source of income when sold in markets.
(iv) Used in crop rotation to improve soil fertility (as legumes fix nitrogen).
(1fii)
Protein
OR
(2ai)
E - False and Composite fruit
F - True and simple fruit
(2aii)
Axile Placentation
(2aiii)
(PICK ANY ONE)
The ovary is divided into several chambers (locules).
OR
The ovules are attached to a central axis within the ovary.
OR
The septa join at the center of the ovary to form a central column where the ovules are borne.
(2bi)
E: False fruit
F: True fruit
(2bii)
E:
(PICK ANY ONE)
It develops from an inflorescence.
OR
Other floral parts such as sepals, petals, and receptacles form the fruit.
F:
(PICK ANY ONE)
It develops solely from the ovary of a flower.
OR
It contains seeds that are formed from fertilized ovules within the ovary.
(2ci)
(PICK ANY THREE)
(i) Both are edible fruits.
(ii) Both contain juice.
(iii) Both have a tough outer covering (rind/skin).
(iv) Both are fleshy fruits.
(2cii)
(PICK ANY THREE)
E: Pineapple is a false fruit.
F: orange is a true fruit.
E: Pineapple is cylindrical in shape.
F: orange is typically spherical.
E: Pineapple has a rough, scaly outer surface.
F: orange has a smooth, leathery skin.
E: Pineapple is a multiple fruit
F: orange is a simple fruit.
(2di)
Animal dispersal.
(2dii)
(PICK ANY ONE)
The fruit is fleshy and juicy, which attracts animals and humans.
OR
The seeds are enclosed and protected within the edible part of the fruit.
OR
Animals eat the fruit and discard the seeds.
OR
The seeds pass through the digestive tract of animals and are excreted elsewhere.
(2e)
(3ai)
TEST: Specimen G + Water + NaOH(aq) + CuSO₄(aq)
OBSERVATION: A purple coloration appears
INFERENCE: Protein is present
(3aii)
Biuret test for protein
(3aiii)
Millon’s test
(3aiv)
(PICK ANY TWO)
(i) Milk
(ii) Fish
(iii) Beans
(iv) Meat
(v) Groundnut
(3b)
TEST: Water + NaOH(aq) + CuSO₄(aq)
OBSERVATION: No color change (It remains deep blue)
INFERENCE: Protein is absent
(3c)
(3d)
(i) Kingdom: Animalia
(ii) Phylum: Chordata
(iii) Class: Aves
(3e)
(PICK ANY TWO)
(i) It serves as a rich source of animal protein for human consumption.
(ii) It is used in the production of confectioneries and baked goods.
(iii) It is a source of income for poultry farmers and egg sellers.
(iv) It is used in manufacturing vaccines and biological research.
(v) It is included in animal feed as a protein supplement, especially the shell and yolk in processed form.
(3f)
(PICK ANY TWO)
(i) Poultry farm
(ii) Forest
(iii) Grassland
(3g)
(PICK ANY THREE)
(i) Chicken
(ii) Duck
(iii) Turkey
(iv) Goose
(v) Quail
(vi) Guinea fowl
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- JUST GO OUT AND BUY MTN CARDS OF N600 (200 + 200 + 200 = 600)
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- DON'T CALL, JUST TEXT, IF THE CARDS PINS ARE VALID, A REPLY WILL BE SENT TO YOU CONFIRMING THAT YOU HAVE BEEN SUBSCRIBED.
- RELAX AND WAIT FOR YOUR ANSWERS 30MINUTES BEFORE EXAM STARTS OR AFTER EXAM STARTS.
- NB: DO NOT SEND USED CARD PINS OR YOUR NUMBER WILL BE BLACKLISTED.
4 Comments
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