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.
Complete and Simple Subjects and Predicates. The simple subject is the main word or word group that tells whom or what the sentence is about. The complete subject consists of all the words that tell whom or what a sentence is about. SIMPLE SUBJECT The study of small insects is a hobby of mine.