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4 Do plants pass down their characteristics to their offspring? 1. Observe the sunshine tree and its offspring. Compare the colour of their petals and the shape of their leaves.
Factors Affecting the Appearances of Plants Besides heredity, the environment also affects the growth of plants. Therefore, plants of the same species growing in different places may have different appearances, such as different heights and flower sizes.
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sunshine tree
sunshine tree‘s offspring
2. Why do the two sunshine trees have similar characteristics? 3. Read the information below and answer the questions.
Reading to Learn
Science for You Read ‘Hybrid Rice’ to see how the scientist studies reproduction and heredity of plants to improve rice varieties and benefit mankind. Appendix 3
Ginkgo trees are old plants on the Earth which have lived for over 290 million years. They survived the extinction of dinosaurs and still exist today.
ginkgo tree leaf
fossil of a ginkgo tree leaf
ginkgo tree
(1) Observe the photos of the fossil of a ginkgo tree leaf and a ginkgo tree leaf grown in Hong Kong. Are there any differences between the shapes of their leaves? (2) Can ginkgo trees pass down the characteristics of their leaves to their offspring?
When plants reproduce, they pass down some of their characteristics to their offspring, such as the colour of petals and the shape of leaves. e
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