The loss of a mother can never be replaced, but the love of a mother can never be lost.
A parent is a caretaker of the offspring in their own species. In humans, a parent is the caretaker of a child. A biological parent consists of a person whose gamete resulted in a child, Some parents may be adoptive parents, who nurture and raise an offspring, but are not actually biologically related to the child. Orphans without adoptive parents can be raised by their grandparents or other family members.
