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Is there a exchange of cells between the mother and the fetus through the placenta?
Under normal conditions, there is not a passage of cells across the placenta during gestation. The placenta has a smooth mucosa dividing the richly vascularized region in contact with the mother's endometrium from the umbilical cord in contact with the fetal blood. This barrier is called as placental barrier. Although permeable to some substances (selective permeability) the placental barrier forbids the passage of cells.
what is the modes of reproduction
CALCIUM It is the most abundant mineral of animal body. Calcium is available in all types of vegetables, grain, milk, cheese, eggs, fish and butter. By its deficiency r
Recently, the media have promoted the idea of consuming only locally grown, organic produce. Are there any nutritional values that might be present in locally grown produce that mi
PITUITARY GLAND (HYPOPHYSIS CEREBRI) - It develops from ectoderm of the embryo. The pituitary gland is located just below the hypothalamus. The pituitary gland is situate
Q. Explain about Diabetes Mellitus? Diabetes Mellitus is a metabolic disorder characterized by chronic hyperglycemia (increased sugar) with disturbances of carbohydrates, fats
Q. What are the archenteron and the blastopore? What is the stage of the embryonic development in which these structures are formed? What are the destinations of the archenteron an
Q. What is Cholesterol? In its free, unesterified form cholesterol is a major component (together with phospolipid) of cell membranes. Its presence helps to stabilize membrane
what is allometry?
Protection of our property: · If any our property lies in an area prone to landslides, we should seek advice of experts in earth movement and take cor
VITAMIN - E Also known as beauty vitamin / tocopherol / antisterlity vitamin . Antioxidant because it inhibits peroxide formation. It stops undesired oxidation. It
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