To fit into the nucleiod region, a bacterial chromosome is tightly wrapped around histone proteins.
Answer the following statement true (T) or false (F)
False
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The flagella of archaea are similar to bacterial flagella but differ in that they
A) lack a basal body. B) move like a whip. C) are anchored in the cytoplasm. D) are hollow. E) are driven by ATP hydrolysis.
A pair of cells that surrounds each stoma and controls its opening and closing are the
A. companion cells. B. guard cells. C. sieve tube cells. D. pith cells. E. vascular cells.
A small island has stable populations of plants and animals, including one species of hawk but no other large predators. A ship docks at the island, and the ship's cat escapes. If the cat was pregnant, what do you think the sailors are likely to find if they return ten years later?
A. The bird and lizard species on the island will have many new adaptations. B. The island will have similar flora and fauna, with the addition of a cat population. C. Some species of ground-nesting birds may have gone extinct. D. Species that were formerly preyed upon by hawks will benefit. E. The increase in nitrogenous waste from the cats will increase plant productivity.
The cellular components of blood that transport oxygen are
A. leukocytes. B. erythrocytes. C. platelets. D. chondrocytes. E. osteocytes.