The Grandidier's baobab is endemic to Madagascar. Fruit bats transfer pollen from one baobab tree to another. The population of fruit bats in Madagascar is decreasing. The photographs show one Grandidier's baobab tree in a field of rice and a Madagascan fruit bat. (Source: © Graham, David / Alamy Stock Photo) (Source: © John Dambik / Alamy Stock Photo) Calcium ions are used to make molecules in plants. (1)

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