[Campbell Biology P.1100] Which of the following is NOT a derivative of the ectoderm in verte... | Practice Question

Which of the following is NOT a derivative of the ectoderm in vertebrates, according to Figure 47.9?

  • A: Epidermis of skin and its derivatives (e.g., sweat glands)
  • B: Pituitary gland
  • C: Skeletal and muscular systems
  • D: Nervous and sensory systems

Explanation

Figure 47.9 clearly categorizes 'Skeletal and muscular systems' under the 'MESODERM middle layer ', not the 'ECTODERM outer layer '. All other options Epidermis of skin and its derivatives, Pituitary gland, Nervous and sensory systems are listed as ectoderm derivatives.