Examlex
Briefly describe how the ultracentrifuge is used to determine the sizes of cellular macromolecules.
Uterine Wall
The muscular layer of the uterus, consisting of the endometrium, myometrium, and perimetrium, crucial for menstrual cycle and pregnancy.
Thymus
Bilobed lymph organ located in the inferior neck and superior mediastinum; secretes the hormone thymosin.
Germ Layer
One of the three primary layers of cells (ectoderm, mesoderm, and endoderm) in the early embryo from which all tissues and organs develop.
Endoderm
Innermost of the three germ layers of an embryo.
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