I'm assuming you meant and frailness not fertility, in which case it is the oldest old period
If there isn’t multiple choice I think it is the ones in the center ring (the closest ring to the center) of the atoms
Ionic bonds, hydrophobic interactions, hydrogen bonds, and Vander waals forces.
Since the main food source for the crocodiles from the group B is fish, overharvesting of fish will have a negative impact on Group B.
Overharvesting of fish or overfishing can usually have serious consequences on aquatic ecosystems, including organisms such as crocodile in this example. Overfishing results not only in affecting the balance of life in the oceans, but also of the coastal communities who depend on fish for their way of life.
The answer is oropharynx. The oropharynx is the center some portion of the pharynx (throat) behind the mouth. It incorporates the accompanying: Back 33% of the tongue. A delicate sense of taste. Side and back dividers of the throat.