3.1.7 Practical: Dissection of Gas Exchange Surfaces in Fish & Insects

Question 1

Ethical Concerns

Answer 1

• People worry about killing the animals
• Goes against religious beliefs

Question 2

Other General Things about this practical that I might need to know

Answer 2

• Scissors, scalpel, forceps, dissection board, paper towels, biological specimen and pins
• Lab coat, gloves and goggles (avoids contamination with biological material (could cause allergic reaction))
• Cut away from body with scalpel
• Scalpel allows for precise cutting

Question 3

Limitations

Answer 3

• Can be hard to see smaller finer structures in organs
• Specimens do not reflect how tissues would look in a living organism
• Anomalies if 1 specimen dissected