No; ideas are not copyrightable, and products are protected by patent and/or trademark as applicable.
Added: Since the question was not answered by the above contributor. . . Copyright laws protect the intellectual work that was produced by those who created it.
To encourage creation of new works by making it financially viable to create for a living.
It depends on the nature of the business. Some create content they wish to protect, some need to license content from others, and some exist exclusively as middlemen between content owners and users.
Thus, material must be original and published in a concrete medium of expression to be covered by a copyright. In other words, for material to be eligible for copyright protection, a tangible product must exist
It depends on how the business interacts with copyright. Some companies create protected materials, some use materials created by others, and some exist specifically to manage copyrights and license uses.
Trademark is a better protector of corporate identity, by protecting company names, logos, and slogans.
It depends on the nature of the business. Some create content, some license content from others, and some exist only to negotiate between creators and users.
None. In fact since 1989 a copyright notice isn't even required for protection to exist.
to protect territory.
It isn't necessary to do anything for copyright protection to exist. In most countries copyright is established as soon as an original work is completed and "fixed in a tangible medium". If you decide that you do want to formally register your copyright you will have to consult the Copyright/Intellectual property office in your area.
Decemberween doesn't exist and it never will exist unless you create it.
Not for people with copyrights!
For a product to exist, there needs to be two or more numbers to compare.