"Which animal has the following characteristics: bilateral symmetry, developed cephalization,jointed appendages present, vertebrae absent, and 6 legs"Group of answer choicesGrasshopperCrayfishFrogSea Star

The animal with the characteristics of bilateral symmetry, developed cephalization, jointed appendages, absence of vertebrae, and 6 legs is the Grasshopper.

Here's why:

1. Bilateral symmetry: This means that the animal can be divided into two identical halves. Both grasshoppers and crayfish have this characteristic, but frogs and sea stars do not.

2. Developed cephalization: This refers to the concentration of nerve tissues and sensory organs in the head of an animal, which both grasshoppers and crayfish have. Frogs also have this, but sea stars do not.

3. Jointed appendages: Both grasshoppers and crayfish have jointed appendages, while frogs and sea stars do not.

4. Absence of vertebrae: Grasshoppers and crayfish are invertebrates, meaning they do not have vertebrae. Frogs, however, are vertebrates.

5. 6 legs: This is the defining characteristic. Grasshoppers have 6 legs, while crayfish have more than 6 legs. Frogs have 4 legs and sea stars typically have 5 or more legs.

So, the answer is Grasshopper.

The animal with the characteristics of bilateral symmetry, developed cephalization, jointed appendages, absence of vertebrae, and 6 legs is the Grasshopper.