Answer:
vįrginity is a sacred thing and to waste it before marriage is dūmb
Answer:
False
Explanation
The lungs are two in number and is the main organ for respiration in the body.
The thorax is also known as the chest. It has various parts attached to it such as the heart, lungs, thymus etc.
The mesothelial cells of the pleural membrane create pleural fluid which serves two purposes:
Lubrication
Attachment of the lungs to the thorax aren’t hereby done by the smooth muscles of the lungs.
The cell wall gives cells shape, enables plant growth, prevents bursting from water pressure, keeps out water and pathogens, stores carbohydrates and sends signals to cells. The flexible cell wall surrounds plant cell membranes.
Plant cell walls perform many functions. Their main task is to support proper plant growth. This is accomplished by the cell wall creating a skeleton-like frame that enables plants to grow vertically and develop a rigid stem. Cell walls vary considerably in thickness and organization, which accounts for the wide range of plant shapes and sizes on the planet. They consist of two layers ‰ÛÓ a primary cell wall, which supports the cell as it matures, and a rigid secondary cell wall that appears after the primary wall stops growing. The primary cell wall is thinner and more flexible than the secondary wall. Internally, the primary and secondary walls have a similar physical composition. Over the course of a plant's life, they perform complementary functions to keep the plant healthy and vibrant.
