matrixes

"Archaeologists carefully dig in the dirt, looking for clues about past civilizations. "

"The mitochondrion in each cell acts like a tiny power plant, converting the food we eat into energy that our body can use. "

"The teacher used a rectangular whiteboard to draw a diagram. "

"The alchemists sought to transform lead into gold."

"The student is representing the country of France in the class presentation. "

"The chef specialized his menu, separating the vegetarian dishes from the meat dishes. "

"The arrangement of chairs in the classroom made it easier for the students to see the teacher. "

"The mitochondria in our cells are like tiny power plants, turning the food we eat into energy. "

"The bacteria multiplied in the extracellular fluid. "

"The seating chart shows each student's coordinates on the line of desks. "

"The generations of new ideas at the company kept it ahead of the competition. "

"My daughter is fascinated by dinosaurs and wants to study paleontology in college. "