Biology

The correct answer is B.Algae and protozoans.

Here's why:

The Kingdom Protista includes a diverse group of primarily unicellular organisms, although some are multicellular (like some types of algae). The two main groups of organisms found in Protista are:

1.Algae: These are photosynthetic organisms that can be unicellular (like Chlorella) or multicellular (like giant kelp). They are similar to plants in that they produce their own food through photosynthesis, but they do not have the same structures as plants.

2.Protozoans: These are unicellular, heterotrophic organisms that ...