what is the meaning of the word dissection in this sentence?

as she did an experiment, the researcher did a dissection on a small animal to see its organs.

a. in a certain way

b. a cutting apart

c. put together

d. a look inside

In the space below, enter the three discussion question stems you selected, and the answers you wrote as you reread the speech. even though this was a note-taking exercise, the answers should still be complete sentences, with correct spelling and punctuation.