volvox

"The bouncy ball was perfectly spherical. "

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

"All magnolias belong to the genus Magnolia."

"I will not remain here any longer."

"The pond water turned green because it was full of chlorophytes, a type of algae. "

"From this vantage point we can observe the behavior of the animals in their natural habitat."

"The British colony in North America eventually became the United States. "

"He is a student of life."

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

"Of course in my opinion Social Studies is more of a science than an art."

"The pond was green because of a large growth of algae. "

"The former flag of Libya is fully green."