Ecologists have studied the Galapagos islands for a long time because of the diversity of the populations they possess. It is th
ought that small colonies of finches emerged on each of these small islands, each small population carrying only certain alleles of the parent population. Over time, the emerging populations varied greatly from one another, leading to the development of new species. Which mechanism of speciation best describes this scenario? A) migration B) founder effect C) temporal isolation D) behavioral isolation Elimi
The founder effect represents the loss of genetic variation in a new population due to the small number of individuals from the larger population that have formed the new population.
The finches on the Galapagos Islands have developed unique characteristics in accordance to their environment. Because there were only very small number of individuals that settled each island, the genetic variation was not the same as while they were part of the larger populations.
Because of this, those small number of individuals starter to develop unique traits only on that single island, which can easily be seen in the shape of their beaks in accordance to the available food source.
Bronchoconstriction may be defined as the constriction of the lung airways that might occur due to the tightening of the smooth muscle. This might result in the sneezing and coughing.
The anti - inflammatory drugs are taken against the symptoms of the constriction. These drugs causes the relaxation of the airways and also result in the decrease of the airway hyper reactions with the different stimuli that might result in the constriction symptoms.
