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Q. Is there an exchange of cells between the mother and the fetus through the placenta?
Under usual conditions there is no passage of cells across the placenta during gestation and the placenta has a smooth mucosa separating 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.
Define Oven - Nutritional Biochemistry? Oven is a general term used to describe a chamber or enclosed compartment for heating, baking, or roasting food, as in a stove, or for f
define alimentary canal
State in detail about rocks A mass of mineral matter is called rock. It may be composed of one or more minerals. Some rocks are hard and compact e.g. granite and basalt, whil
Define Energy requirements for Underweight? The total calorie intake should be 500 to 1000 Kcal in excess of the daily needs in order to result a gain in weight by half to one
Explain function of lymph nodes? Lymph nodes have white blood cells which ingest bacteria and prevent them from reaching the circulation.
Q. Describe the process of coronary atherosclerosis? Atherosclerosis is an intimal disease of arteries ranging in size from the aorta to the epicardial coronary artery i.e. cha
Give detail explanation about Swimming Swimming is an excellent form of exercise. Swimming can improve the posture and circulation. It is a healthy activity. There are certain
A glycosidic bond would be present in: Select one: a. acetone. b. methyl-alpha-D-glucose. c. 2-deoxy-beta-D-ribose. d. glucose-6-phosphate. e. fructose-1, 6-bisph
What do you understand by Serial homology? Metamerization results in a linear series of segments which share a common embryonic origin. Ancestrally, all metameres were identica
What are the major terrestrial biomes? The main terrestrial biomes are: tundra, taigas (or boreal forest), tropical forests, temperate forests, grasslands and deserts.
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