The following situations are presented to a medical examiner. in which situation is the medical examiner most likely to gather more evidence before determining the manner of death?

a) 18-year-old male recovered in alley with gunshot wound to back of head
b) 25-year-old male recovered from rapids after his empty kayak is sited by friends
c) 35-year-old male deceased at home from a drug overdose
d) 90-year-old female deceased at home with no external injuries

1. true.2. true.3. true.4. false.5. true.the concept of darwin's theory of evolution involves the idea that there are limited resources in a given living environment and that the organisms which live within have variations in their genetic make up due to random mating. the ones with beneficial genetic variations can express certain traits which give them an upper hand in surviving and reproducing in the said environment compared to ones who may have a more disadvantageous variation in traits. over time, the organisms with an upper hand will survive and reproduce more frequently and pass on their beneficial genes while the others die. the result is evolution, where we observe (usually, but not always) eventually, phenotypic distinct changes.