ribozyme

"My sister brought several books to the library, and that one is about dinosaurs. "

"My daughter's teacher is very kind and helpful. "

"Often used to imply membership of a large class."

"The store is offering a special on school supplies this week. "

"The enzyme amylase helps your body break down the starch in bread. "

"To explain a chapter of the Bible."

"The announcement of the verdict brought a violent reaction."

"Of course in my opinion Social Studies is more of a science than an art."

"I heard a small fragment of the conversation."

"My mother added extra protein to her lunch to help her build muscle. "

"The scientist studied the chemical composition of the soil sample. "

"How does Usain Bolt run at that speed?"