Multiple seeds form many ways.
1. In multiple fruits like pineapples, several flowers come together to form a single fruit. Thus, there are multiple seeds because multiple flowers are involved.
2. In berries, you typically have several carpels per flower, each of which might have several ovules.
3. In drupes, you have several carpels, each of which has only one ovule.
4. In pomes, you have only one carpel but multiple ovules per carpel.Tags: Biology