The first answer should be the right one
Given that a blowfly starts its lifecycle only if there are appropriate conditions met, one of which is suitable temperature, the correct answers as to what can impact the timing of the blowfly lifecycle is the air temperature.
I don't see how humans will impact when this fly is going to be born, so A and C are incorrect. Leaves also doesn't really affect blowflies, which is why D is incorrect as well.
Nondisjunction is the failure of one or more pairs of homologous chromosomes or sister chromatic.
The conversion of light energy into chemical energy. (use of energy)
