Examlex
There is a tremendous variety of signal transduction pathways with a wide range of functions.However,all these pathways have some things in common.Discuss some of these common features.
Mesoderm
The middle layer of the three primary germ layers in the early embryo, which develops into muscles, bones, circulatory system, and other internal organs.
Ectoderm
The outermost layer of cells or tissue of an embryo in early development, giving rise to the epidermis and nervous system.
Endoderm
The innermost layer of cells or tissue of an embryo in early development, which gives rise to the lining of the digestive and respiratory systems.
Periderm
A protective tissue in plants, making up the outer layer of the bark in woody plants.
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