Answer Bag lets anyone post, and the best answer will be determined by vote (not a very good way of getting the answer). WikiAnswers lets anyone edit and answer a question, and there is no voting for the best answer - the answer is edited over time by numerous contributors until the answer is perfect (a very good way of getting the answer).
Summary: WikiAnswers allows people to edit an answer until it is perfect, and Answer Bag votes on the best answer. Answer Bag members may have misspellings in their best answer that was voted, but no one can change that. WikiAnswers allows you to make the answer perfect, and add what you think is best for the answer to a question.
A brain.
The difference between a Fossil bag and a Mineral bag is that they are both purses and handbags manufactured from two different companies, and are priced differently as well.
A bag has a strap and a sack has a handle.
Google search - is a search engine. WikiAnswers is a forum.
A duffle bag is usually smaller than a suitcase. The biggest difference between a duffle bag and a suitcase is that a suitcase usually has hard sides while a duffle bag has soft sides.
a tea bag stays loger in a cup
A bag is usually more durable than a sack
they both smell
The difference between a bed in a bag and a comforter set is that a bed in a bag set includes other bedding such as pillow cases and sheets. Comforter sets just include the sleeping bags and sometimes the sheets.
An accessory is like a necklace or a bracelet, so jewelry. A bag is a container you can put stuff in.
Spamming is a type of vandalism, but not all vandalism is spam.
There is no difference. For a while, Wikianswers was the main display site. However, Answers decided to bring it all under the Answers.com brand, since it is all Answers.com content.