joshua is observing various types of onion cells under a microscope and looking for similarities and…

joshua is observing various types of onion cells under a microscope and looking for similarities and differences. what kind of investigation is this? none of these comparative investigation experiment descriptive investigation
Answer
Brief Explanations:
Comparative investigation involves looking at similarities and differences between different things. Joshua looks at similarities and differences among onion - cell types.
Answer:
B. Comparative investigation