2026 WAEC

Tuesday 16th June 2026

Biology 

Exam Pluto

PIN: 959

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BIOLOGY WAEC QUESTIONS AND ANSWERS POSTED BELOW 











*WAEC 2026 BIOLOGY* 

(1a)(i)
Pollination.

(1a)(ii)
Pollination is the transfer of pollen grains from the anther to the stigma of a flower of the same species. In this case, bees carry pollen grains from one flower to another while feeding on nectar.

(1b)(i) Bees
(PICK ANY TWO)
(i) Hairy body which traps pollen grains.
(ii) Long proboscis for sucking nectar.
(iii) Strong wings for moving from flower to flower.
(iv) Well-developed sense of smell for locating flowers.

(1b)(ii) Plants
(PICK ANY TWO)
(i) Brightly coloured petals which attract bees.
(ii) Sweet scent which attracts bees.
(iii) Presence of nectar in the flowers.
(iv) Sticky pollen grains which adhere to the body of bees.

(1c)
The plants provide nectar as food for the bees.

(1di)
(i)Stamen (anther + filament)
(ii)Pistil/Carpel (stigma, style, ovary)

(1dii)
(i)Petals (corolla)
(ii)Sepals (calyx)

(1e)
(i)One male nucleus fuses with the egg cell → forms the zygote (2n) → develops into embryo (ii)The second male nucleus fuses with the two polar nuclei → forms the triploid endosperm nucleus (3n) → develops into endosperm (food store)

(1f)
(i)Hard, dry pod that bursts/explodes forcefully to scatter seeds (explosive dehiscence)
(ii)Lightweight seeds easily carried by wind/animals







(2a)
Translocation is the movement of manufactured food substances (mainly sugars) from the leaves, where they are produced during photosynthesis, to other parts of the plant such as the roots, stems, fruits and growing regions through the phloem tissues.

2B


2C




*WAEC BIOLOGY*

 *NUMBER THREE*

(3a)
Check the image below 




(3bi)
Iroko

(3bii)
(PICK ANY ONE)
(i) Quadrat sampling method.
(ii) Transect sampling method.
(iii) Plot sampling method.
(iv) Random sampling method.
(v) Census/counting method.

(3c)
Population Density = Number of Hevea sp. ÷ Area of rainforest
= 5 ÷ 1000
= 0.005 plants/m²

(3di)
(PICK ANY FOUR)
(i) Establishing game reserves and national parks.
(ii) Enforcing laws against poaching and illegal hunting.
(iii) Afforestation and reforestation programmes.
(iv) Captive breeding of endangered species.
(v) Public enlightenment on conservation.
(vi) Protection of natural habitats.
(vii) Regulating exploitation of forest resources.
(viii) Establishment of seed banks and gene banks.

(3dii)
(PICK ANY FOUR)
(i) Provides timber and other forest products.
(ii) Prevents soil erosion.
(iii) Regulates climate and rainfall.
(iv) Improves air quality by releasing oxygen.
(v) Conserves biodiversity.
(vi) Provides employment opportunities.
(vii) Serves as a source of medicinal plants.
(viii) Protects water catchment areas.




WAEC BIOLOGY ANSWERS
(4ai)
Iron

(4aii)
Vitamin K

(4aiii)
hemophilia

(4b)
(i) Spinach
(ii) Broccoli
(iii) Kale

(4c)
(i) Blood typing and crossmatching: To determine the patient's blood type and match it with compatible donor blood.
(ii) Complete Blood Count (CBC): To assess the levels of red blood cells, white blood cells, and platelets.
(iii) Coagulation tests: Such as prothrombin time (PT) and activated partial thromboplastin time (APTT) to evaluate the blood clotting ability.

(4d)
(i) Two compatible blood group types for a person with blood group A are A positive (A+) and A negative (A-).
(ii) The likely blood groups of the patient's parents could be A and O.

(4e)
(i) Hemophilia is an X-linked recessive disorder, meaning the gene responsible is located on the X chromosome. Males have only one X chromosome (XY), so if the X chromosome they inherit from their mother carries the hemophilia gene, they will manifest the disorder. Females have two X chromosomes (XX), so they need to inherit the hemophilia gene from both parents to manifest the disorder.

(ii) A condition that would result in a female offspring manifesting hemophilia is if she inherits an X chromosome with the hemophilia gene from her carrier mother and her father also carries the hemophilia gene on his X chromosome.

(iii)
- Down syndrome
- Cystic fibrosis



Question 5