Write an essay discussing topics relating to the purpose and function our blood. See the guidelines below for specific essay topics and requirements. 
Answer all the following questions:

What is the bloods main function? Give 5 specific examples with a detailed explanation.
What are the main components of blood? Give 3 specific examples with a detailed explanation of their role and purpose.
Compare and contrast erythrocytes, leukocytes and platelets within the human body and explain their origins, purposes and actions within the body.

In a single essay, address each question asked in a single essay-style document with each topic separated with APA level headings, include an introduction and conclusion paragraph. The formatting for your submission is as follows:

Submissions should be in .doc file format.
Support your answers with 4 scholarly resources.  Your textbook can be used as well.
Follow APA format, Times New Roman, 12 Font, double spaced.
Be sure to cite all sources appropriately. (See APA guidelines).
An appropriate APA cover page and reference page should accompany your submission.
Please view the evaluation rubric as you will be assessed on adequacy of responses based on the criteria in the rubric. 
Minimal word requirement is 1500 words, not including Title or References pages. Be sure to structure your paper with APA level headings related to the assignment components.
See the rubric for specific grading criteria.