Quartzite is an example of an Igneous rock, therefore it weather's more slowly.
A knife that penetrates the lung and enter the heart would first enter:
(1) parietal pleura
(2) visceral pleura
(3) visceral pleura
(4) parietal pleura
(5) fibrous pericardium
(6) serous pericardium
The first membrane, parietal pleura is the outer covering of the lungs and it attaches to the thoracic cage. The next membrane, visceral pleura is the inner covering of the lungs. The fibrous pericardium, like the parietal pleura, is the outer covering of the heart which anchors the heart to the diaphragm and sternum. The serous pericardium, which is made of two layers, is the inner covering and lines the surface of the heart.
Learn more of membranes from:
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The answer is epigenetic changes in their DNA. These are heritable
changes in gene function that do not involve changes in the DNA sequence. This
occurs through methylation patterns and histone modification on the DNA strand that
may result from external or environmental factors.
Explanation:
The atmospheric boundary layer is defined as the lowest part of the troposphere that is directly influenced by the presence of the earth's surface, and responds to surface forcing within a timescale of about an hour or less.
