How does iMessage work?

I recently updated my phone…& everything that was on my tablet transferred over to my phone (which i did not want). If i turn off iMessage will i not be able to receive messages on my tablet if someone uses my apple ID email? I still want to receive message but i don't want my ipad to receive texts & calls that are placed on my iphone. Help!

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Is an iPad allowed in planes on domestic flights within the US?

Can an iPad be used on an international flght bound for the mainland US?

- what about US domestic flights?

I hear security regulations have recently changed and would like to know some details?

Thank you.

Read more: Is an iPad allowed in planes on domestic flights within the US?