microfossil

"He was a marine in World War II."

"The single-celled organism was studied by the biology students in their science class. "

"The student used a microscope to see the tiny cells in the plant leaf. "

"The new school principal is a powerful advocate for student success. "

"The detective was able to identify the suspect from the security camera footage. "

"She gave a studied reply."

"It looks weaker and weaker, the more I think about it."

"The ancient librarian was known for her vast knowledge of history. "

"The under-the-counter storage bin kept the extra supplies hidden. "

"We supply all microscopic stains and other materials."

"The scientist studied the effects of different types of soil on plant growth. "

"The museum exhibit showed a beautiful fossil of a dinosaur bone. "