He found a can of a medicine that kills different types of bugs and parasites. Candy tells him the man who stayed in his bunk before was very clean and probably has a can as a precaution.
B. Because corpse is a dead non living body and a body could be either/or.
B12 vitamins ? as in the energy boosting ones ?
For Greek and Latin roots it dorm
1. A source of oxygen
2. Something to control temperature; we humans need a temperature that is neither too hot nor too cold.
3. Protection from sunlight
4. Water
5. Food