In this activity you will: graph data of human fetal growth and describe the rate of human fetal growth.

Discover the development of an embryo. Beginning with fertilization and progressing through each stage in the first trimester and continuing every two weeks for the second and third trimesters. This site is meant for medical students and...

In this activity, students observe and graph data about human fetal growth rates. Students build a regression model based on the data and compare values with those of other mammals. They also compare the data to non-mammal species.

This site from the National Institute of Child Health and Human Development provides in-depth information about the birth defect, Spina Bifida.