Neither, it is bone.
A tissue is an organ!
your brain is protected by your skull
The skull or cranium is part of the skeletal system.
your brain is protected by your skull
Organ system: circulatoryOrgan: HeartTissue: Cardiovascular tissue
it is a organ lol
cells tissue organ organ system orgasim
The liver is considered an organ, not a tissue.
The brain.
It is a organ
organ
organ