Thyroxine is the main hormone secreted into the bloodstream by the thyroid gland. It plays vital roles in digestion, heart and muscle function, brain development and maintenance of bones.
A singular subject is a noun or a pronoun for just one person, place, or thing. A plural subject is a noun or a pronoun that is two or more persons, places, or things. Exampl â¦ es: Singular subject: The boy came for lunch. He was hungry. Plural subject: The boys came for lunch.
Plural subjects should be matched to plural verbs and vice-versa. Plural subjects usually have an '-s' or '-es' added on to the end of the word, while plural verbs drop the '-s' if they have one. Likewise, singular subjects don't have an '-s,' while singular verbs do.