Most predators have forward facing eyes, while most prey have side mounted eyes. If you think about the animal behaviors of both prey and predators, you should be able to make connections between their eye placement and their necessities for survival. Most prey have side mounted eyes because it allows for a better depth perception and a wider field of view. This can help the animals keep watch while they graze in open fields. On the other hand, most predators have forward facing eyes because it allows them to focus in on prey while hunting and chasing.
Structural formulas identify where the atoms/bonds within a molecule are located. Therefore, the atoms need to be listed in order of appearance (left to right). This makes the best answer D.) HOCOOH.
Since they cannot see very well or even at all in some cases, these animals use echolocation instead to orient themselves, to find where they are, and to find food.