Q. Which of the following kingdoms include organisms that are both autotrophic and heterotrophic?

1. Protista
2. Monera
3. Fungi

Select the correct option from the codes given below:
Answer: Only 1 and 2
Notes: Protista includes organisms like Euglena which are both autotrophic (photosynthetic) and heterotrophic. Monera (bacteria) also have members that are autotrophic (cyanobacteria) and heterotrophic. Fungi are strictly heterotrophic, depending on organic matter for food through saprophytic or parasitic nutrition, and lack autotrophic forms.