Iron-deficiency anemia can cause fatigue (tiredness), shortness of breath, chest pain, and other symptoms. Severe iron-deficiency anemia can lead to heart problems, infections, problems with growth and development in children, and other complications.
Semantics is the study of meaning. It is a wide subject within the general study of language. An understanding of semantics is essential to the study of language acquisition (how language users acquire a sense of meaning, as speakers and writers, listeners and readers) and of language change (how meanings alter over time).
For example, Mice ate cheese. âheeseâ is the object that received the verb. The Subject (S) of the sentence states who or what performs the main Verb. In the English language, the Subject is most often a noun or noun phrase that comes in the beginning of a main clause or simple sentence.