Constricting ring around nematode is formed by_____________?
Correct answer: A. Arthrobotrys
- A. Arthrobotrys
- B. Pleurotus ostreatus
- C. Mildews
- D. All of these
Explanation
Arthrobotrys is a predatory fungus that forms constricting adhesive rings around nematodes; the rings tighten when a nematode enters and help the fungus capture it. Pleurotus can trap nematodes with toxin-producing structures but does not form these characteristic constricting rings, so students may choose d by grouping all nematode-trapping fungi together.
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