A homologous structure is a example of an organ or bone that appears in different animals, underlining anatomical commonalities demonstrating descent from a common ancestor. In other words it’s when very different animals have bones that appears very similar in form or function and seem to be related.
.More than likely the arrow is pointing to a LYSOSOME.
Lysosomes are double membrane organelles produced by the Golgi Apparatus that contain enzymes that allow for foreign material to be dissolved when engulfed by the structure
Minerals <span>that are heavy, durable, and chemically resistant are likely to be found in placer deposits. A placer deposit </span><span>is an accumulation of valuable minerals</span>
