What are the key differences between endoderm, mesoderm, and ectoderm in embryonic development?

Endoderm, mesoderm, and ectoderm are the three primary germ layers that give rise to different tissues and organs in the developing embryo.

• Endoderm: Gives rise to the innermost layer of tissues, such as the lining of the digestive tract and respiratory system.
• Mesoderm: Gives rise to the middle layer of tissues, including muscles, bones, and the circulatory system.
• Ectoderm: Gives rise to the outermost layer of tissues, such as the skin, nervous system, and sensory organs.

These germ layers differentiate and specialize during embryonic development to form the various structures and systems of the body.