Spongin is a modified type<span> of collagen protein, </span>forms<span> the fibrous </span>skeleton<span> of most </span>organisms<span> among the phylum Porifera, the sponges. It is </span>secreted<span> by sponge cells known as spongocytes. Spongin gives a sponge its </span>flexibility<span>.</span>
<span>The poem is loosely structured and contains repetition.</span>
I can't give you all 150 words but I can give you an idea, usually the author choose as their choice of setting because they want the audience to understand what is going on in the story. This impacts the themes and progression of the Plot because you will be able to understand the conflict in the story making it easier to understand it
