Using clay or salt dough, make models of typical examples from the three classes of annelids. Describe the adaptations that enable each annelid to live in its environment.

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There are three types of Annelies, each type lives in a different environment. Hence each type has developed adaptations that are adapted to its lifestyle.

$\textbf{\textcolor{Brown}{Earthworm}}$ lives in the terrestrial environment. They have $\text{\textcolor{Brown}{setae}}$ , a tiny hairlike structures that act as an anchor that extend into the soil and anchor the worm during movement.

$\textbf{\textcolor{#4257b2}{Polychaetes}}$ live predominantly in marine environment. They have $\text{\textcolor{#4257b2}{parapodia}}$ , a fleshy projections with numerous $\text{\textcolor{#4257b2}{setae}}$ that are used for swimming and crawling. Also, they have $\text{\textcolor{#4257b2}{well-developed sense organs}}$ .

$\textbf{\textcolor{#c34632}{Leeches}}$ are external parasites that live predominantly in freshwater environment. They have $\text{\textcolor{#c34632}{front and rear suckers}}$ that help them to attach to the bodies of their hosts.