Here's a breakdown:
* Parasitism is a relationship between two organisms where one organism (the parasite) benefits at the expense of the other (the host).
* Parasites can be very diverse, ranging from tiny bacteria and viruses to large worms and even some plants.
* Hosts can be animals, plants, fungi, or even other parasites!
Examples of parasites:
* Fleas on a dog
* Tapeworms in a human intestine
* Mistletoe growing on a tree
* Malaria parasites living in mosquitos and humans
Let me know if you have any other questions about parasites!
