Indentifiyng species is the answer
Solid because it maintains their shape and is rigid
in this case the answer would be letter "D"
Create a mindset that blocks you from accepting that certain things in life are true.
Microvilli which line down the luminal surface of those epithelial cells represent the resorptive function of the proximal tubule.
<span>The high quantity of mitochondria inside the epithelial cells of the proximal convoluted tubule is needed in order to supply the energy for the active transport of sodium ions (to enter the cell from the luminal side).</span>
There is 50% probability that their daughter's son will have the disease, because daughter chromosomes are XX , and the X from father will have x- linked disease, now in next generation the son will have XY chromosomes, Y is from father and X will from mother, now mother have two "XX", out of these two one carry x- linked disease, that means 50 percent chances of having disease in son.