IMO Practice Test — Plants: Life & Growth
6 Questions • 12 min • Olympiad level
12:00
Question 1 of 6
hard
A flower that has both stamens and a pistil is called a ___ flower.
Half
Complete (bisexual)
Dead
Fruit
Explanation: A flower with both male and female parts is complete.
Question 2 of 6
medium
A plant kept in a dark cupboard cannot make food because it lacks…
Air
Water
Sunlight
Soil
Explanation: Without sunlight, photosynthesis cannot happen.
Question 3 of 6
hard
A baby plant inside a seed first uses the seed's stored ___ to grow before it can make its own food.
Water only
Food
Soil
Sunlight
Explanation: A seed stores food for the young plant to start growing.
Question 4 of 6
hard
If all the bees disappeared, many plants would make far fewer fruits because pollination would be…
Unchanged
Faster
Reduced
Easier
Explanation: Fewer pollinators means much less pollination and fewer fruits.
Question 5 of 6
hard
A seed with a tasty fruit around it is most likely spread by…
Animals that eat the fruit
Magnets
Electric wires
Sound waves
Explanation: Animals eat the fruit and spread the seeds inside.
Question 6 of 6
hard
A pea pod is a fruit, and the peas inside it are the…
Leaves
Petals
Roots
Seeds
Explanation: Peas are the seeds inside the pod fruit.