Because Thomas conducted experimental research on the fruit flys. This research later established the chromosome theory of heredity. Meaning that genes are linked into a series of chromosomes. Explaining that the series creates identifiable traits that are passed down.
I believe the answer would be A, because if water didn’t exist, there would be no presence of living things on earth. Water is a resource for life, thus, presence of living things.
A nurse´s best response in a post traumatic stress disorder case would be to be very patient, kind and understandable because it is a slow process where family members should get involved, that ptsd could take months of therapies and medication, that will depend on the origin of the trauma, the event that caused that emotional disorder, today considered a disease and like one, treated and medicated.
