Question

Differentiated cells in a developing embryo derive from ________.​

Answer 1

Answer:

Differentiated cells that arise from the developing embryo are called the ectoderm, mesoderm and endoderm. These are also referred to as the three germ layers.

Answer 2

Differentiated cells in a developing embryo derive from three germinal layers.

Explanation:

• During the 3rd week of fertilization, Gastrulation process takes place.

• At the time of 'gastrulation', the developing embryo or inner cell is differentiated into three germinal layers.

• "Ectoderm, endoderm and mesoderm" are the three germinal layers.

• Nervous system, brain, spinal cord, epidermis, hair, nails are developed from ectoderm.

• Internal organs, stomach, liver, pancreas, bladder, lung, gut lining are developed from endoderm.

• Connective tissue, muscles, circulatory system, notochord, bone, kidney, gonads are developed from mesoderm.