The kingdom that is exclusively heterotrophic, including many predators and parasites, is the Kingdom Animalia, also known as the Animal Kingdom.

Here's why:

* Heterotrophic: Animals cannot produce their own food like plants do (autotrophs). They rely on consuming other organisms for energy and nutrients.

* Predators: Many animals are predators, hunting and killing other animals for food.

* Parasites: Parasites live in or on other organisms, obtaining nutrients at the host's expense.

Let me know if you have any other questions!