<span>Stabilization Selection
In Stabilization Selection there is a decrease in the amount of variation. In the case of Stabilization Selection, selective pressures must select against two extremes of a particular trait. Two opposing selection pressures will combine to maintain a median height. Rather than resulting in extremely tall plants or extremely short plants, the majority of the plants in this population will be of medium height.</span>
Phenol red is used as the indicator for the Urea Medium because the indicator detects the formation of ammonia caused by the hydrolysis of urea done by the bacteria. Bromothymol blue is used in Simmons Citrate Agar because it effectively indicates the formation of carbonates formed by the consumption of citrate.
Throat, Anus , digestive system teeth
I’m so sorry if it’s wrong but I’m going to say that answer for
10.) D.
11.) C.