assume that student is given two different models of bacteria with one model consisting of big bacteria and the other consisting of small bacteria . how can the student demonstrate the theory of endosymbiosis using the model?

The theory of endosymbiosis states that the eukaryotic cells evolved from the prokaryotic cells. According to this theory, a large bacterium ingested a small bacterium and then they evolved together working as a single unit. This can be shown through a model by demonstrating a big bacteria ingesting the small one. The small bacteria came to be cell organelles, such as mitochondria and chloroplasts in the eukaryotic cells with their own DNA.

Correct: show the big bacteria ingesting the small one

Centriole.centrioles are present in animal cells but are usually absent in plant cells.