In order for me to assist you, you must attach an image of the graph. :)
Your outer skin is your epidermis, so just look at your arm
Answer:
Among vertebrates, external fertilization is most common in amphibians and fish. Invertebrates utilizing external fertilization are mostly benthic, sessile, or both, including animals such as coral, sea anemones, and tube-dwelling polychaetes. Benthic marine plants also use external fertilization to reproduce.
= Fish
Explanation:
They require shallow waters where the sun can reach them!