Sub-topic 1
2025 · National One-Eighth
Free
Edible parts of fruits: pericarp layers
Read past contest →
Sub-topic 2
2023 · National Preliminary
Premium
Edible parts of fruits: pericarp layers
Read past contest →
Sub-topic 3
2025 · National One-Eighth
Premium
True and false fruits: classification of fruit types
Read past contest →
Sub-topic 4
2025 · National One-Eighth
Premium
Ovule structure and seed development
Read past contest →
Sub-topic 5
2021 · National Preliminary
Premium
Seed structure: the hilum
Read past contest →
Sub-topic 6
2021 · National Preliminary
Premium
Removal of germination inhibitors from a seed in nature
Read past contest →
Sub-topic 7
2021 · National Preliminary
Premium
The embryonal axis of a dicot seed: radicle and plumule
Read past contest →
Sub-topic 8
2024 · National One-Eighth
Premium
Seed dispersal mode favoured by dense, heavy fruits
Read past contest →
Sub-topic 9
2024 · Regional Championship
Premium
Liquid endosperm as the biological identity of coconut water
Read past contest →
Sub-topic 10
2025 · National One-Eighth
Premium
The funicle: the stalk attaching the ovule and seed to the placenta
Read past contest →
Sub-topic 11
2023 · National Preliminary
Premium
The coleorhiza: protective sheath covering the radicle
Read past contest →
Sub-topic 12
2023 · National Preliminary
Premium
The scutellum: the single shield-shaped cotyledon of the wheat grain embryo
Read past contest →
Sub-topic 13
2023 · National Preliminary
Premium
What viviparity is not: hypogeal/epigeal germination and parthenocarpy (true/false)
Read past contest →
Sub-topic 14
2013 · National Preliminary
Premium
Birds as dispersers of brightly coloured fleshy fruit seeds
Read past contest →
Sub-topic 15
2013 · National Quarterfinal
Premium
Double fertilization produces a triploid endosperm nucleus (true/false)
Read past contest →
Sub-topic 16
2013 · National Quarterfinal
Premium
Double fertilization triploid endosperm (true/false, detailed repeat)
Read past contest →
Sub-topic 17
2017 · National Semifinal
Premium
Biological importance of seed dormancy
Read past contest →
Sub-topic 18
2018 · National Preliminary
Premium
The caryopsis (grain), a one-seeded fruit fused to its seed coat
Read past contest →
Sub-topic 19
2018 · National Preliminary
Premium
Identifying drupes by their stony endocarp
Read past contest →
Sub-topic 20
2018 · National Preliminary
Premium
The fleshy mesocarp as the edible part of mango fruit
Read past contest →
Sub-topic 21
2021 · National Quarterfinal
Premium
Riddle: dispersal, the biological process spreading seeds away from the parent plant
Read past contest →
Sub-topic 22
2023 · National Preliminary
Premium
The edible part of groundnut is the cotyledon
Read past contest →
Sub-topic 23
2023 · National Preliminary
Premium
The edible part of mango is the mesocarp
Read past contest →
Sub-topic 24
2023 · National Preliminary
Premium
The edible part of a banana is its mesocarp and endocarp
Read past contest →
Sub-topic 25
2023 · National Preliminary
Premium
The edible part of a coconut is the endosperm
Read past contest →
Sub-topic 26
2023 · National Preliminary
Premium
The fleshy part of a true fruit derives from the ovary wall
Read past contest →