The skin is to the bones

superficial

Explanation:

The skin is superficial to the bones. Deep describes a position farther from the surface of the body

a

explanation:

many plants naturally reproduce this way, but it can also be induced artificially. horticulturalists have developed asexual propagation techniques that use vegetative plant parts to replicate plants. success rates and difficulty of propagation vary greatly. monocotyledons typically lack a vascular cambium and therefore are harder to propagate.

a physical change is being made.