Answer:
Ependymal cells
Explanation:
Ependymal cells line the spinal cord and ventricles of the brain. They are involved in creating cerebrospinal fluid
Additional component that you may use to attach yourself to the tree include:
1. Climbing belt which you will attach round the tree when climb up and when getting down.
2. Tree strap which you will use to strap yourself to the tree when you are on the tree stand.
3. Lifeline system: helps you to remain attached to the tree from the time you go up until you come down.
What attachment? I don’t see any attachment?
An obligatory parasite is a parasite that can not complete its life cycle without exploiting a suitable host