Answer:
Most correct answer is all of the germ layers
Explanation:
Mucous membranes constitute the innermost layer of a number of hollow organs (i.e.: gastrointestinal tract). They are composed of an epithelial lining which overlies a deeper layer of connective tissue. Typically, each of these components arises from a different germ layer. For instance: the mucous lining of the gut arises from a combination of endoderm-derived epithelium and lateral mesoderm-derived connective tissue. Other mucous membranes may have different origins, for example: The mucous lining of the oral cavity is composed of ectoderm-derived epithelium and underlying connective tissue derived from head mesenchyme (combination of cephalic neural crest and paraxial mesoderm).
Summary:
Mucous Membrane = Epithelium (derived mainly from endoderm, followed by ectoderm, rarely mesoderm) + Underlying Connective Tissue (usually mesoderm)
Answer: a. Its first capillary beds drain into arterioles.
Explanation:
The kidneys are the two filtering units in the bodies. Inside each kidney their is a filteration unit called as glomerulus. This includes a group of blood vessels called as capillaries. The blood enters the capillaries by afferent arterioles and leaves by the virtue of efferent arterioles.
Refer the pregnant women to an OB-GYN medical doctor or hospital emergency room
