Which factor is difficult to assess in a cost–benefit analysis?

i dont know about basic economy but i think is benefit and if people knows that if there is better alternative; cause people only watch for the best benchmark or something like that, also how many gonna last the product; for examples most of the people want an iphone or a samsung because is most knowedge trademarcks(except iphone has a large), or for example, you prefer to buy aloe vera or a drink based on aloe vera, obviously you rate the natural one because it has all their properties, but you have to prepare it, you obtain more for less, instead, drinks based on it has little cuts of it, are more expensive and has less nutritional facts. you obtain less for more

well thats it, sorry for write the holy bible but idk about economy so perhaps is not the answer that you search

as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.  

the answer would be 2, if crossing over doesn’t occur 2 out of 4 of the daughter cells will have that allele.

hope this : )