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Byju's Answer
Standard XII
Biology
Notochord
Why do eggs o...
Question
Why do eggs of birds and insects have shells?
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Solution
Bird eggshells are made of calcium carbonate and insect egg shells are gelatinous in nature. During embryo development in the egg, they prevent
Microbial contamination
Desiccation
Regulation of gas exchange
In birds, the eggshell also provides calcium for embryogenesis.
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