4 conditions are needed.
Reproduction
Heredity
Hight rate of population growth
Differential survival and reproduction
Stem cells are cells of the body that can divide and become differentiated. stem cells specialise and take specific functions when an organism grows
mature tissues such as muscle, blood, tissue, bone, nerves, liver all have different types of cells.
they come from three to five day old embryo cells.
they represent potential in the regeneration and repair of damaged tissue. some therapies actually currently use stem cells for this reason
The answer is letter a. Social Capital. Social capital refers to the social networks and the reciprocal norms associated with these networks that encourages people to do things for each other.