The eyes belong to the Nervous system.
The dura mater belong to the craniosacral system.
Vagus
the bob system
The immune system
transforming forelimb to paddle and back to forelimb.
Homology.
They belong to the nervous system
A bird has a wing as a forelimb as well as a bat, and the function of both are to help the animals fly
The kidneys belong to the excretory system.
Veins belong to the circulatory system, because they transport blood there for they belong to the circulatory system.
it is animals skeleton
The bones belong to the skeletal system.
The eyes belong to the Nervous system.
The lungs belong to the Respiratory System.
Arteries and veins belong to the cardiovascular system.
The dura mater belong to the craniosacral system.