What is the difference between the terms bereavement, grief, and mourning from a psychological perspective?

I need someone to quotwrite a 5 page paper (NOT including reference or title page) analyzing the following questions. You will need to incorporate at least five (5) peer-reviewed articles
What is the difference between the terms bereavement, grief, and mourning from a psychological perspective?
How does death anxiety differ with age and gender?
Are there cultural differences in how people respond toward death and dying?

For example, what are some cultural attitudes toward euthanasia and assisted suicide?
Are advance directives generally accepted by all cultures?
Explain.What role does religiosity and spirituality play in accepting death?