E&T: Dissecting Gas Exchange Systems

Question 1

How would you dissect fish gills?

Answer 1

1. Weat apron
2. Place fish in dissectio tray
3. Push back operculum and use scissors to remove gills
4. Cut each gill arch through bone at top and bottom
5. Look for gill filaments

Question 2

What are some ethical issues involving animal dissection?

Answer 2

• Concerns over conditions animals were raised in and whether they were killed humanely
• Morally wrong to kill animals for dissections only