incisions

"The lack of sleep resulted in a poor performance on the math test. "

"The scientist carefully examined the substance to determine its chemical composition. "

"My sister is very helpful, especially when it comes to organizing things. "

"The medicine helped my grandmother feel better after she had the flu. "

"The invasive species of weeds in the school garden are difficult to control. "

"The doctor performed a surgical procedure to remove the tumor. "

"When I have a cold, I take medicines to help me feel better. "

"It took him only twenty minutes to perform the task."

"The operation of the new coffee machine is quite simple. "

"The lemonade was a clear solution of lemon juice and water. "

"The separation of the classroom into smaller groups for the lesson was efficient. "

"minimally invasive surgery"