The Most Important Events in Human Development Occur During the ____

Question

The most important events in human development occur during the ____.
A) week before birth
B) month before birth
C) first trimester
D) second trimester
E) third trimester

Accepted Answer

During the first trimester, the major organs and systems of the body are formed, including the brain, heart, lungs, and digestive system. Additionally, the embryo goes through important developmental stages, such as implantation, gastrulation, and neurulation. These early stages of development set the foundation for later growth and function, making the first trimester a critical period in human development.