Thymosin, produced by the thymus, stimulates the maturation of
A) red blood cells.
B) both T and B cells.
C) B cells.
D) all white blood cells.
E) T cells.
E
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Many amphibians now face extinction, and one cause is believed to be a __________ fungus. Fill in the blank(s) with the appropriate word(s)
Frederick Law Olmsted, known as the father of American landscape architecture, is known for designing _________ and then becoming the original commissioner of _____________ National Park.
A. New York's Central Park, Yosemite B. Niagara Falls, Yellowstone C. Greek-style public gardens, Yellowstone D. Yellowstone National Park, Yosemite E. Chicago's City Parks, Yellowstone
During his voyage around the world, Darwin was inspired to think about evolution by ____________.
A. the works of others such as Lamarck B. fossils he collected C. studying adaptations of organisms to their environments D. the unique organisms he saw in the Galapagos islands E. all of the above
The structure at the tip of the red arrow is the ______ ______ of this enzyme.
Fill in the blank(s) with the appropriate word(s).