What does the ectoderm primarily develop into?

Study for the DAT Quantitative Reasoning Test with multiple choice questions and detailed explanations. Hone your skills and get ready for your exam!

The ectoderm is one of the three primary germ layers formed during embryonic development, the other two being the mesoderm and endoderm. The ectoderm primarily differentiates into structures that involve the nervous system and skin. This includes the development of the brain and spinal cord, as well as the epidermis, which is the outer layer of the skin. Additionally, the ectoderm gives rise to sensory organs, such as the eyes and ears, demonstrating its critical role in forming vital structures that mediate interaction with the environment.

Thus, the correct answer highlights the primary derivatives of the ectoderm, aligning with our understanding of developmental biology. It is essential to recognize that while the other germ layers also contribute to various systems and structures within the body, they do not form the brain, skin, and sensory organs like the ectoderm does.

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