What part of a flower develops into the flesh of the fruit?

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Important Questions on Sexual Reproduction in Flowering Plants

HARD

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 2 - Sexual Reproduction in Flowering Plants>Exercise 9>Q 1

What resources might plants compete for if they grow in crowded conditions?

MEDIUM

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 2 - Sexual Reproduction in Flowering Plants>Exercise 9>Q 2

Why do plants need to disperse their seeds?

HARD

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 2 - Sexual Reproduction in Flowering Plants>Exercise 9>Q 3

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Look at figure 2.16. A student planted a hundred of cress seeds in a small tray. The seeds have produce seedlings, but they have taken longer to reach this height compared to seedlings in a similar tray where the student planted just ten seeds. Suggest two reasons for this.

EASY

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 2 - Sexual Reproduction in Flowering Plants>Exercise 10>Q 4

Explain how dandelion seed are adapted for dispersal.

HARD

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 2 - Sexual Reproduction in Flowering Plants>Exercise 12>Q 5

Suggest the seed dispersal method for each of the seed shown in figure 2.23. For each give the method of dispersal and explain why you think is a successful method.

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