It may be perfectly healthy that their newborn is sleeping this long so unless they start displaying other strange symptoms that cause concern, there is no need to worry. They could suggest that they are concerned to the midwife if they feel anxious, to get a professional opinion.
I believe the correct answer from the choices listed above is the first option. A lamprey is characterized by an absence of jaws. This animal is have no jaws and are only full of teeth. <span>Lampreys are any jawless fish of the order Petromyzontiformes. Hope this answers the question.</span>
