How are the circulatory and digestive systems related?a. Blood vessels carry nutrients to body cells.
b. Portions of the brain control the heart rate in the body.
c. Stomach muscles are able to expand and contract.
d. The pharynx is the passageway for food and air.

The correct answer is A. Technology, collaboration, and innovation were responsible for the advances in modern medicine.

Explanation:

Modern medicine is the result of technologies, discoveries, innovations, and inventions that had taken place, especially from the 19th century to nowadays. This medicine differs from previous medicine because it is not based on religion or beliefs but on science and technology that had allowed doctors and other experts to understand the nature of illnesses and the body.

Besides this, modern medicine is influenced by collaboration because doctors and experts in different areas work together, for example, biomedical engineering involves medicine and engineering. Also,  innovation in treatments, tests, and perspectives was a key element for modern medicine. Thus, the statement that best describes the rise of modern medicine is "Technology, collaboration, and innovation were responsible for the advances in modern medicine".

"Target cells" are specific cells in which hormones bind to act.

Option: C

Explanation:  

Hormones are chemical messengers secreted into blood or extracellular fluid by one cell that affect the functioning of other cells. Hormones affect only a given number of cells called target cells or a target cell consists of receptors through which they responds a particular cell is a “target cell” for a hormone if it contains “functional receptors” for that “hormone” and “cells” which does not have such “a receptor” not influenced openly by that hormone. "Hormones receptors" are set up either on the “surface of the cell” or “within the cell”. It varies through cell to cell.

C. Target Cell

The specific cell a hormone binds to is called a target cell

Answer: The Surgeon general functions maximally over matters relating to public health care and human services. Though the following are some of the challenges faced by the surgeon general and well listed in the explanation.

Explanation:

The Surgeon General's principal function is to serve as spokesperson on matters of public health and to advise the Secretary of Health and Human Services. However the position is challenging in the following respects:

1. There is lack of agreement on the plans of the Public health missions.

2. There is shortage of capacity to carry out the essential Public health functions of assessment, policy development and assurance of services.

3.The position faces lack of order and organisation in terms of decision-making without necessary data and knowledge.

4. It also faces unfairness in the distribution of services and the benefits of public health.

5. They face barriers on effective leaderships, including poor interaction among the technical and political aspects of decisions, rapid turnover of leaders, and inadequate relationships with the medical profession.

6. They faces organizational detachments or divisions.

7. They faces problems in relationships among the several levels of government.

8. There is inadequacies in acquiring the necessary knowledge across the full array of public health needs.

9. The poor public image of public health affects their reputation, inhibiting necessary support and special problems that limit unduly the financial resources available to public health.

The correct answer is B)They should speak openly with few inhibitions.