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Cleavage - Development Biology
Cleavage or segmentation is a series of cell divisions of the fertilized .egg through which it is converted into a multicellular structure, called blastula. The main characteristics of cleavage include:
The cell divisions in the somatic cells are mitotic. The daughter cells or blastomeres or cleavage cells are also derived as a result of mitotic divisions of the zygote. We may ask whether there are any differences between mitotic divisions of somatic cells and, of the zygote and the blastomeres derived from it during cleavage.
What causes acid precipitation? Acid precipitation is the result of air pollutants that combine with water vapor in the atmosphereto form acids, causing precipitation that is m
The evolution of human kind can be regarded as the climax of phylogenic history of organisms. In the previous units of this block as well as the previous block we have detailed for
How is it structurally explained that the motor activity of the left side of the body is controlled by the right cerebral hemisphere and the motor activity of the right side of the
Q. Explain Cardiac calcification? Pericardial Calcium is most dense in the atrioventricular grooves and is seen as thick oblique circles or arcs of calcification. From th
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Myocardial contractility is mostly dependent on the level of sympathetic nerve activity and is also increased by circulating catecholamines and inotropic drugs like dopamine and do
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Define Precautions - Estimation of Nitrogen and Protein Content? 1. The apparatus should be airtight to prevent leakage of NH 3 . 2. The tip of the delivery tube should be i
Define Metabolic response to food - Requirement of Energy? Eating requires energy for the ingestion and digestion of food, and for the absorption, transport, inter conversion,
The greatest buffering capacity of weak acids is when- Select one: a. They are almost completely dissociated b. They are almost completely undissociated c. They are nea
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