Exchange of cells among the mother and the fetus
Is there exchange of cells among the mother and the fetus via the placenta?
Expert
Under common conditions, there is no passage of cells across the placenta throughout gestation. The placenta has a flat mucosa splitting the richly vascularized area in contact with the mother’s endometrium from umbilical cord in contact with the fetal blood. This blockade is termed as placental barrier. Though permeable to certain substances (that is, selective permeability), the placental blockade forbids the passage of cells.
What is the reason that a long lasting vaccine doesn't exist against common cold yet?
Write down the diseases of Blood Vessels.
Explain the beings which form the kingdom Animalia? What are the two big classes into which this kingdom is classified?
Successful managers understand the importance of perception as an influencing factor on behavior and they act accordingly. They are aware of perceptual distortions and also know that perceptual differences are likely to exist in any situations. As a result, they true to make decisions and take ac
How is the extracorporeal digestion related to the predation in arachnids?
Please see attachment for instruction in this assignment In general: 1)One graph logarithmic of time(x axis) vs transmittance(y axis) 2)One graph logarithmic of time(x axis) vs absorbance(y axis) 3)Answer the questions in the attachment of bacterial growth curve results.
Why the 2-A group elements are termed as Alkaline earth elements?
Illustrate that hormones are only proteins?
How the volume of water absorption and the water transpiration volume vary comparatively within the plants in a day? Specify the final comparative balance of these processes?
How does study of fossils strengthen theory of evolution?
18,76,764
1960779 Asked
3,689
Active Tutors
1445240
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!