To determine which organism requires additional information to identify its mode of reproduction (sexual or asexual), we would need to know specific details about each organism's reproduction method as recorded in the table. Since you haven't provided that information, I cannot help you identify the organism that needs further investigation.
However, in general, if an organism's reproduction method is unclear or undefined (like if it shows traits of both sexual and asexual reproduction without clear categorization), that organism would typically be the one needing more information to determine its reproductive strategy. If you can provide the data recorded for each organism, I'll be able to assist you more effectively!