Eighth graders study how an embryo develops into a fetus by undergoing many physical changes which they observe on a poster. They examine the metamorphosis of fruit flies as they develop through a series of changes. They record the...

Students study the least familiar aspect of development in Drosophila melanogaster; the development of the pupa. Students isolate and culture "First-day" pupae. They are dissected daily to study the progressive developmental changes.

Describes the stages in the metamorphosis of a fruit fly during its life cycle.