Multiple choice

Which of the following sentences is false?

  1. The Caribbean chicken-liver sponge Chondrilla nucula is responsible for bio-erosion.

  2. Sponge flies are specialist predators of freshwater sponges.

  3. Cyanobacterium causes rust-coloured bands in Aplysina red band syndrome.

  4. Glass sponges produce highly toxic chemicals for defence.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

It is untrue, glass sponges do not secrete toxic chemicals for defence.

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