Multiple Choice
Which of the following is a focus of the late adulthood stage in human development?
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28. Human Development
Introduction to Human Development
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Which of the following structures is not formed by the mesoderm during embryonic development?
A
Bones
B
Liver
C
Muscles
D
Heart
Verified step by step guidance1
Understand the three primary germ layers in embryonic development: ectoderm, mesoderm, and endoderm. Each layer gives rise to specific tissues and organs.
Identify the structures typically formed by the mesoderm. The mesoderm is responsible for forming structures such as bones, muscles, the cardiovascular system (including the heart), and connective tissues.
Recognize the role of the endoderm. The endoderm primarily forms the lining of the digestive and respiratory systems, as well as associated organs like the liver and pancreas.
Compare the list of structures in the problem with the typical derivatives of the mesoderm. Bones, muscles, and the heart are all mesodermal derivatives.
Conclude that the liver is not formed by the mesoderm, as it is derived from the endoderm, making it the correct answer to the question.
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