1. Scientists use petri dishes to observe bacterial growth.
科学家使用培养皿来观察细菌的生长。
2. The agar in the petri dish provides nutrients for microbial growth.
培养皿中的琼脂提供了微生物生长所需的营养。
3. Petri dishes are commonly used tools in the laboratory.
培养皿是实验室中常用的工具。
4. Petri dishes can be used to test the effects of antibiotics.
培养皿可以用来测试抗生素的效果。
5. Microorganisms form colonies in the petri dish.
培养皿中的微生物形成菌落。