Search

Displaying 1 - 2 of 2

By: Kate MacCord | Published: Sep 17, 2013

A germ layer is a group of cells in an embryo that interact with each other as the embryo develops and contribute to the formation of all organs and…

By: Mark Zhang, Chanapa Tantibanchachai | Published: Oct 17, 2013

Cocaine use by pregnant women has a variety of effects on the embryo and fetus, ranging from various gastro-intestinal and cardiac defects to tissue…