Final answer:
The animal with two eyes and six legs but no wings is categorized as an insect, due to the characteristic features that define insects.
Step-by-step explanation:
An animal with two eyes, six legs and no wings typically belongs to the group called insects. Insects are characterized by having a pair of antennae, six segmented legs, specialized mouthparts for feeding, and often but not always, a pair of wings. Since the animal in question lacks wings, we focus on the remaining characteristics, which point to it being an insect. Therefore, the correct answer is (3) insect.
An animal with two eyes, six legs, and no wings belongs to the group of insects. Insects are characterized by having a body divided into three segments, six legs, and usually two pairs of wings. Examples of insects include ants, bees, butterflies, and beetles.