When a zygote develops, the new cells are called stem cells. stems cells do not have a specific function yet. as they develop, they will become a specific type of cell depending on what instructions are held in its' dna. the process of a stem cell becoming a specific cell type is called

Which of the following was a social cost associated with the development of the internal combustion engine used in most cars? a. people were able to use their horses for new tasks. b. new jobs were created. c. blacksmiths needed to gain new skills to continue working. d. families were able to travel farther more easily.