Examlex
Examine the given structural formula that consists of an adenine molecule bonded to a five-carbon sugar molecule. Which of the following describes the components of this substance?
Germ Layer
One of the three primary layers of cells (ectoderm, mesoderm, and endoderm) in the very early embryo, from which all tissues and organs develop.
Digestive Tube
The tubular passage functioning in the digestion and absorption of food and the elimination of food residues, stretching from the mouth to the anus.
Ectoderm
The outermost layer of cells or tissue of an embryo in early development, giving rise to the outer layer of skin, brain, and nervous system.
Embryonic Development
The process by which the embryo is formed and develops, beginning with fertilization and ending at birth or hatching.
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