How does a stern cell become a heart muscle cell and once it

How does a stern cell become a heart muscle cell, and once it does, it changes to another type of cell? Genes direct differentiation of a single embryonic stem cell into a cardiac muscle cell, and that cell replicates to grow into a heart; no, that process cannot be reversed. Genes direct differentiation of a single embryonic stem cell into a cardiac muscle cell, and that cell replicates to grow into a heart; yes, the process can always be reversed. The stern cells differentiation into an outer population, some of which differentiate can always be reversed. The stern cells differentiate into an outer population, some of which differentiate into muscle cells, and some of those differentiate into heart muscle cells; no, the process cannot be reversed Your family tree is a hierarchy in which your living relatives now all share a common great grandparent going back in time, how is this like life on Earth? It isn\'t like life on Earth because each species came about individually, so there is no hierarchy or family tree. It\'s like life on Earth because each individual within a species came from an individual in another species going back in time. It\'s like life on Earth because your family has been around a long time, too. It\'s like life on Earth because living species related to each other can be traced back in time to a common ancestral species. What procedure did Dr. Semmelweis order in the hospital that led to an immediate reduction in cases in cases of childbed fever? Only midwives were allowed to assist in labor and delivery. Only midwives were allowed to perform autopsies. Doctors did deliveries in the morning, before the autopsies in the afternoon. Everyone was required to scrub their hands with bleach prior to assisting with a delivery.

Solution

First option is correct. Stem cell division leads to generate different type of cell; called cell differentiation. The process is irreversible; if stem cell divides into a progenitor cell then it can reverse.

The option D is correct. Like a family tree, phylogenetic tree also have common ancestors for some species or phyla. According the origin of life, every organism developed from a common ancestor.

Option 4 is correct. Dr. Ignaz Semmelweis found that women were less dying when they had delivery in their home. He discovered that if hands wash with Calcium Chloride solution during delivery, there would a dramatic decrease in childbed fever fatality.