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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About Classification of Biological Molecules
Biological molecules are classified as carbohydrates, lipids, proteins and nucleic acids, with water, minerals and vitamins also supporting cellular processes. The key distinctions involve their monomers, chemical bonds, structures and functions, including glucose and starch, fatty acids and triglycerides, amino acids and polypeptides, and nucleotides in DNA and RNA.
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