Here's why:

* Autotrophic: Euglenoids have chloroplasts, which allow them to perform photosynthesis like plants. They can produce their own food using sunlight.

* Heterotrophic: Euglenoids can also absorb nutrients from their environment. They can be mixotrophic, meaning they can use both photosynthesis and heterotrophic methods to obtain energy.

Therefore, euglenoids are a fascinating example of protists that can adapt to different environments and utilize various strategies for survival.