Answer:
D. Pattern of symmetry
Explanation:
The bird, insect and the giraffe all have the same pattern of symmetry or body plan.
They have bilateral symmetry. This is because of a vertical plane is run through each of them, from top to bottom, the body parts would be divided into two. That is each side would have equal arrangement of the different parts that makes up the organism. This is why it is referred to as bilateral symmetry.
