Answer:
Eukaryotic Cell
Explanation:
Eukaryotic cells contain membrane-bound organelles, such as the nucleus, while prokaryotic cells do not. Differences in cellular structure of prokaryotes and eukaryotes include the presence of mitochondria and chloroplasts, the cell wall, and the structure of chromosomal DNA.
I think it is in Tales of Suspense #39 that the cover dated March 1963. May 1968 Iron Man #1 received its own title.