A pinhead is a small, stupid person. The term is often used to describe people who are too narrow-minded or who don't understand complex issues.
Pupae are the immature stages of some insects. They are usually smaller and less developed than the adults that they will become.
To reorganize something is to put it in a new order or to change its layout. When you reorganize your desk, you might move all of the books to one side and all of the pens to another.
When someone is sedated, they are put to sleep or tranquilized in order to make them less resistant to medication or surgery.
To inseminate something is to put a sperm into a female organism. This can be done in a number of ways, including using a condom or a syringe.
When people use the word "bee" to describe a group of people, they usually mean a group of honey bees. A beehive is a structure that honey bees build to store their honey.
To domesticate something is to make it behave in a way that is typical of humans. This might mean training it to behave in a certain way, or teaching it to live in a human-controlled environment.
Pollinators are creatures that help plants grow. They are usually insects, but there are also some other creatures that can be pollinators.