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30/08/2020 6:08 pm
Topic starter
What is left, when bath sponges dries up?
(a) Spicules
(b) Hold fast
(c) Spongin fibres
(d) Tentacles
1 Answer
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30/08/2020 6:09 pm
(c) Spongin fibres
Explanation:
Spongin is an organic horny elastic substance. They are fibres insoluble, chemically inert and resistant to protein digesting enzymes.