Question

Which of the following is not a guanotelic organism?

• A. Spiders
• B. Scorpions
• C. Starfish
• D. Mites

Answer 1

Answer:

C. Starfish

• Spiders, scorpions, and mites are arachnids and guanotelic organisms, meaning they excrete nitrogenous waste primarily as guanine.

• Starfish, however, are not guanotelic; they belong to echinoderms and excrete ammonia or other forms, not guanine.