The Life Cycle of a Bird 在線電子書 圖書標籤:
發表於2024-11-24
The Life Cycle of a Bird 在線電子書 pdf 下載 txt下載 epub 下載 mobi 下載 2024
Ages 6 to 12 years. Although there are over 9,000 species of birds in the world, each develops from a single-celled egg, is incubated, hatches, and grows to adulthood. Some bird life cycles involve migration. The book focuses on the various stages and explains: differences in the length of time birds incubate their eggs and care for their young; the development of a chicken embryo and how a chick hatches; dangers to nesting habitats, the effects of pollution, and how these affect the life cycle of birds.
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The Life Cycle of a Bird 在線電子書 pdf 下載 txt下載 epub 下載 mobi 下載 2024