A student nurse practitioner asks her preceptor about the origins of different tissues, and their cellular origins d

Question 

Question 1.1. A student nurse practitioner asks her preceptor about the origins of different tissues, and their cellular origins during the process of development. Which of the following statements by the preceptor best describes the process of cell differentiation? (Points : 3)

“Cells of the hematopoietic system produce the appropriate body cells that are required at each stage of development.”

“A single stem cell differentiates into approximately 200 different types of cells.”

“A fertilized ovum undergoes a series of divisions, yielding many different cell types.”

“Cells differentiate into necessary body cells, peaking after conception, and ceasing near the time of birth.”

Question 2.2. A 77-year-old male patient with a diagnosis of stomach cancer has been found to have metastases in his liver. The patient and his family are surprised at this turn of events, stating that they don't see how he could have developed cancer in his liver. Which of the following facts would underlie the reply that the care team provides? (Points : 3)

The parenchymal tissue of the liver is particularly susceptible to secondary malignancies.

The portal circulatory system brings venous blood from the gastrointestinal tract into the liver.

Hepatic stromal tissue shares characteristics with cancerous cells, including lack of anchorage dependence.

The proximity of the liver to the stomach allows for direct spread of cancerous cells due to a lack of contact inhibition.