posibly, depending on the circumstances.
You probably mean what do veins do? Anyways, they always return blood back to the heart.
Tigers cannot regenerate their body parts.
A Red panda cannot regenerate any body parts. There is no known panda in the world that can regenerate any body parts.
Claws
liver
to regenerate
no
yes, it can.
the veins are blue.
yes like sponges and planarian and the earthworm can regenerate the last half of its body when sliced.
Yes