The ________ was developed in the late 1920s by Theodore Svedberg. He originally used it to determine the sedimentation rate of proteins.
Fill in the blank(s) with the appropriate word(s).
ultracentrifuge
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A thick ring, large nucleus, and bands across the cell and 6 to 12 merozoites in a mature schizont are all characteristics of which Plasmodium spp.?
a. P. vivax b. P. ovale c. P. falciparum d. P. malariae
Bacterial cystitis
A. is a common nosocomial disease. B. is typically caused by Escherichia coli. C. may occur through the use of a catheter. D. is unusual in men under 50. E. All of the choices are correct.
Which of the following regulates the transportation of endangered species across international borders?
a. The Red List b. Migratory Bird Treaty Act c. CITES d. Endangered Species Act
Four of the five pairings listed below match the
correct taxonomic group and common name. Select the exception. a. Chondrichthyes: sharks b. Urochordata: lancelets c. Amphibia: toads d. Reptilia: lizards e. Osteichthyes: perch