Life Before Birth

Traces the development of the chick embryo from fertilization to hatching, placing emphasis upon the experimental research done to discover the causes of migration and development of heart cells in the embryo. The difference between heart cells and other body cells is pointed out as being the development of the protein myacin. Research causing nonheart cells to differentiate into heart cells is depicted., Records the nine-month cycle from conception to birth. This film utilizes microphotography, computer-animated models and examples of the process that occurs as a fertilized human egg develops into a newborn baby. Teacher preview recommended., Traces the development of the chick embryo from fertilization to hatching, placing emphasis upon the experimental research done to discover the causes of migration and development of heart cells in the embryo. The difference between heart cells and other body cells is pointed out as being the development of the protein myacin. Research causing nonheart cells to differentiate into heart cells is depicted.NOTE: Two (or more) records have been merged together to create this data.