Which kingdom includes autotrophic and heterotrophic, unicellular and multicellular organisms? a) animalia b) fungi plantae d) protista

D) Protista

Explanation:

The kingdom Protista includes organisms which are simple eukaryotic, they are usually composed of single cell or multicellular organisms. These organisms either live in water or in terrestrial habitats. Some of the organisms in the kingdom Protista exhibit characteristics which are similar to plants and animals. As, some organisms are parasitic like animals and others can conduct photosynthesis like plants in order to obtain food. Therefore, according to the above explanation kingdom Protista includes autotrophic, hetrotrophic, unicellular and multicelluar organisms.

"a.) well–developed vascular system."