Bacteria
Noun
UK
/bækˈtɪə.ri.ə/
US
/bækˈtɪr.i.ə/
Level: Easy - A1 (Beginner)
Definition
Tiny living organisms that are too small to see without a microscope and can be helpful or harmful to living beings.
Example
"Bacteria are everywhere."
"Good bacteria in our intestines help break down food and improve digestion naturally."
"Doctors prescribe antibiotics to kill harmful bacteria and stop infections from spreading in the body."
Explanation
Bacteria are tiny living organisms that are too small to see without a microscope. They exist almost everywhere, in soil, water, air, and even inside our bodies. Some bacteria are helpful, such as those that help digest food, while others can cause illnesses like infections. They reproduce quickly and adapt to different environments, making them an important part of nature and health.