Final answer:
The Pulitzer Prize-winning poet in question, who penned the poem 'The Summer Day,' closing with the line about our 'one wild and precious life,' is Mary Oliver.
Step-by-step explanation:
The Pulitzer Prize-winning poet who was born on September 10, 1935, and is renowned for the poem 'The Summer Day,' in which she asks, "Tell me, what is it you plan to do with your one wild and precious life?" is not directly mentioned in the provided references.
The poets discussed in the references include Phillis Wheatley, Walt Whitman, a poet who wrote about Wordsworth, and Theodore Roethke. However, the answer to the student's question is Mary Oliver, a poet known for her clear, poignant observations of the natural world.
The Pulitzer Prize-winning poet born on September 10, 1935, who closed her poem 'The Summer Day' with the question 'Tell me, what is it you plan to do with your one wild and precious life?' is Mary Oliver.
She was often referred to as 'far and away, this country's best-selling poet' by the New York Times.