The nurse should call for help or wait until help arrives.
There are two electron transfer chains in photosynthesis. Both the two chains (Photosytem I and Photosystem II) are utilized to split water to get electrons. Electron transport helps establish a proton gradient that powers ATP production and also stores energy in reduced coenzyme NADPH. This energy is used to power the Calvin Cycle to produce sugar and other carbohydrates.
The answer is
C) If the Tamiflu-resistance gene involves a cost, it will experience directional selection leading to reduction in its frequency.
So, since pollution is usually bad for the environment I'll have to say most likely A.
The correct answer is option D, that is, large genetic diversity.
The total number of genetic features in the genetic makeup of a species is known as genetic diversity. It is different from genetic variability, which illustrates the capacity of the genetic features to differ.
Genetic diversity can be a result of mutation, random fertilization, random mating, and recombination among the homologous chromosomes at the time of meiosis. It functions as a way for the populations to amend with the modifying environments. Therefore, it should not result in the decline of a population.