foraminifers

"The biology teacher explained that protists, like some single-celled algae, are a diverse group of organisms. "

"The amoeba moved across the microscope slide by extending its pseudopodia. "

"In biology class, we learned that vertebrates, like humans and birds, are classified in the subphylum Vertebrata, which is a group smaller than the phylum Chordata but larger than the class Mammalia (for humans) or Aves (for birds). "

"The white blood cell moved across the slide in an amoeboid fashion, extending and retracting its shape to engulf bacteria. "

"Scientists study plants to understand how they grow. "

"The soil in this region is very calcareous, making it ideal for growing grapes used in wine production. "

"Scientists study foraminifera found in ocean sediments to understand past climates. "

"Sweat was streaming down his face after the intense workout. "

"During the séance, the medium's ectoplasm glowed faintly, a shimmering substance that the onlookers believed proved communication with the deceased. "

"The temperature in the room dropped nearly 20 degrees; it went from hot to cold."

"The Nile delta is composed of sediment that was washed down and deposited at the mouth of the river."

"The teacher characterized the student as disruptive in class. "