Answer:
Answer is : 8 weeks
Explanation:
The heart of fetus starts to beat at around 6th week of pregnancy and can be heard through sonographically however by week 8th, one can hear it through stethoscope.
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:
Gross Anatomy
Rats have a duplex uterus that consist of two separate uterine horns that are partially fused caudally.
Answer:
True
Explanation:
To make sure that their measurements are correct
Answer:
Small intestine
Explanation:
Around eighty percent of usable nutrients are absorbed in the small intestine.
The main area of gastrointestinal tract responsible for absorption is small intestine. It consists of three sections, i.e. the duodenum, jejunum and ileum. In duodenum, jejunum majority of nutrients are absorbed.
The duodenum absorbs carbohydrates, proteins, and starches that are in the form of glucose or proteins are absorbed in the jejunum.
