Forensic estimation of time of death Quiz
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5 questions, one answer each
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1. Which evidence is the most useful for estimating the time of death of a body that has been dead for three weeks?
- A. Body temperature
- B. Degree of rigor mortis
- C. Temperature of the room alone
- D. Insect species and life-cycle stage present
2. Why do muscles stay contracted in rigor mortis?
- A. Calcium ions are pumped out of the muscle
- B. Without ATP the myosin heads cannot detach from actin
- C. Actin filaments become shorter
- D. Nerve impulses continue to arrive
3. A body has a core temperature of 31.5 °C. Normal is 37.0 °C and the body cools by 1.5 °C per hour. About how long ago did death occur?
- A. 3.7 hours
- B. 5.5 hours
- C. 2.1 hours
- D. 8.3 hours
4. Which insects are usually the first to colonise a fresh body?
- A. Beetles that feed on dried skin
- B. Mites
- C. Blowflies
- D. Ants
5. Why must the temperature at the scene be recorded in forensic entomology?
- A. Insects only lay eggs above 20 °C
- B. Insects develop faster when warmer and more slowly when colder
- C. Temperature determines the species of insect
- D. Temperature changes the number of eggs laid