Lesson 7 Student Activity Sheets: How do bacteria get killed?

One popular method of killing bacteria using moist heat is boiling. Many of us boil water for 15-20 minutes before drinking. We must remember that boiling can kill the bacteria but cannot kill all types of bacterial spores. Energy transmitted through space in a variety of forms is generally called radiation.

Explanation:

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.