👉 Polychaetes are invertebrates that have a single layer of cells called polypeptide chains, which is composed of amino acids and other organic compounds. They can be found in various environments such as oceans, rivers, lakes, and seas.
👉 Polychaetes are invertebrates that have a single layer of cells called polypeptide chains, which is composed of amino acids and other organic compounds. They can be found in various environments such as oceans, rivers, lakes, and seas.
