diatom

"The division of the large project into smaller tasks made it much easier to complete. "

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

"I have a house and a car."

"The scientist studied the unicellular organism under a microscope. "

"She gave a studied reply."

"You have twenty minutes to complete the test."

"First, categorize incoming messages according to the needed actions."

"He covered the baby with a blanket."

"The architecture of this clock is very intricate."

"The delicacy of the antique teacup meant we had to handle it with extra care. "

"The desert soil was very siliceous, making it difficult for plants to grow without special adaptations. "

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