To better understand the effectiveness of infertility treatment, it is necessary to study the processes that occur during the first week of embryonic development. At this stage, the embryo begins to ...

Prenatal development unfolds in three major stages: germinal, embryonic, and fetal. Each stage involves significant growth and transformation, laying the groundwork for vital organs and systems that ...

Multicellularity is one of the most profound phenomena in biology, and relies on the ability of a single cell to reorganize itself into a complex organism. It underpins the diversity in the animal ...