Multiple choice

Among the following which one is created by certain kinds of marine and freshwater bivalve molluscs?

  1. Alpaca fleece

  2. Angora fibre

  3. Mohair

  4. Byssus
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Byssus means both a silky filament by which certain molluscs attach themselves to hard surfaces, and a rare fabric, also called sea silk and its fibre source. It generally refers to a filament created by certain kinds of marine and freshwater bivalve molluscs, which use it to attach themselves to rocks, substrates or sea beds.

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