Neelix and Paris establish the alien infant is cold-blooded yet it is seen shivering and Neelix wraps it in a blanket, Both are useless as cold-blooded creatures don't shiver as it wouldn't generate body heat and since it doesn't have any body heat, the blanket wouldn't contain its warmth.
The Federation encountered the Jem'Hadar in The Jem'Hadar (1994), which aired and took place a few months before this series started. Although the Jem'Hadar did not become a prominent enemy until after then, Voyager could very well have Jem'Hadar images in its databanks.
Neelix apologized to Tom for throwing hair pasta in his lap. However, he had thrown the pasta on Tom's chest, not his lap.