Choose the singular form of the noun given below:
Bacteria
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Bacterium
Singular of nouns ending in -a (from Latin):
Some nouns that came into English from Latin end in -um in the singular. They change -um to -a in the plural. To find the singular, change -a back to -um. So bacteria → bacterium. A bacterium is a tiny living thing that can be seen only under a microscope.