Final answer:
Both dry heat and steam can be effective in killing organisms, but moist-heat sterilization is typically more effective because it penetrates cells better.
Step-by-step explanation:
Both dry heat and steam can be effective in killing organisms, but moist-heat sterilization is typically more effective because it penetrates cells better. Dry-heat sterilization protocols involve applying high heat over a longer period of time, whereas moist-heat sterilization protocols use steam at a high temperature and shorter time. For example, an oven can be used for dry-heat sterilization, while boiling is a common method of moist-heat control. The effectiveness of killing organisms with either dry heat or steam depends on the specific organism being targeted.