mesophyll

"The doctor examined the patient's veins to see how well the blood was flowing. "

"Plants use photosynthesis to make their own food from sunlight, water, and air. "

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

"My brother is a bit of a soft when it comes to asking for help with his homework. "

"The vegetables provided many essential nutrients for the growing children. "

"The teacher explained the lesson thoroughly throughout the entire class period. "

"deliver a captive from the prison"

"The maple tree outside the school had beautiful, green leaves. "

"We saw the internal compartments."

"The liver's parenchyma, which consists of cells called hepatocytes, is responsible for filtering blood and producing bile, while the surrounding connective tissue provides structural support. "

"to allow a servant his liberty;  to allow a free passage;  to allow one day for rest"

"By the action of electricity, the water was resolved into its two parts, oxygen and hydrogen."