Examlex
Why might an early childhood science teacher teach a unit on dinosaurs even though there are no dinosaurs for the children to see?
Endoderm
The innermost of the three primary germ layers in the early embryo that gives rise to the lining of the digestive and respiratory systems.
Mesoderm
A middle layer of cells or tissues in an embryo from which many organs and tissues such as muscle, bone, and blood vessels develop.
Subcutaneous Adipose Tissue
A layer of fat stored directly under the skin, serving as insulation and energy storage.
Skin Wound
A break or opening in the skin that results from injury or surgical incision.
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