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Grade 9 Integrated Science Quiz on Reproduction in Plants

This quiz explores plant reproduction with a focus on pollination, fertilization, and seed formation using realistic examples.

During a school garden project, Janet notices that a mango tree is flowering but not producing fruits. Which of the following is the most likely explanation?

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While dissecting a flower in class, Ali observes a swollen structure at the base of the carpel. What part of the flower is this?

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Kevin observes a bee landing on a flower and brushing against its anther and stigma. What process is he witnessing?

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Linet rubs pollen from a hibiscus flower onto the stigma of another hibiscus plant. What type of pollination is this?

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A student suggests that petals play no role in reproduction. Which argument would best correct this misconception?

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In an experiment, Mercy removes the anthers from a flower before pollen is released. Later, no fruit forms. Why?

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Why does a maize plant have both tassels and silks?

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A science team tries to pollinate a flower using a fan instead of insects. It works. What type of pollination is being imitated?

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During lab analysis, a student sees a pollen tube growing down the style toward the ovule. What is happening?

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John says a tomato is not a fruit because it’s not sweet. Is he right?

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