Answer:
a. establishment of left-right asymmetry
Explanation:
- Cardiac looping is the process in which the heart transforms itself from a straight embryonic heart into a loop that is wounded helically.
- The looping of the heart takes place on the 23rd day of development.
- As a result of this looping, there is bending of the cranial portion of the heart to the towards the right end and the caudal portion of the heart towards the left end.
- At the end of this looping the atrium takes up a dorsal and cranial position and the ventricle is displaced towards left.
- Thus, the outcome of looping is the establishment of left-right asymmetry.
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Answer:
To compensate for the natural visual distortion in which tall columns appear to bend inward, the Greeks gave them a slight bulge, which is known as:
entasis
Explanation:
Answer:
Natural air pollutants include radon, fog and mist, ozone, ash, soot, salt spray, and volcanic and combustion gases.
A the cell, definition - the cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells.
