<span>They are not visible because the chromatin coils up,shortens,and thickens.</span>
The second one I think .............
<span>If the osmotic pressure in the glomerular capillaries increased from 28 mm hg to 35 mm hg, net filtration would decrease.</span>
The major function of the immune system is to protect the host from environmental agents such as microbes or chemicals, thereby preserving the integrity of the body. This is done by the recognition of self and response to non-self.
