The cells of the members of the kingdom Protista differ from those of the domain Bacteria in that
A. none of the Protista have cell walls.
B. all of the Protista have a nucleus.
C. none of the Protista have flagella.
D. all of the Protista are smaller than Bacteria.
B. all of the Protista have a nucleus.
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The antidiuretic hormone
a. controls levels of GH. b. influences levels of LH. c. influences levels of FSH. d. reduces urine output. e. causes contractions of the uterus
Both pulse-field gel electrophoresis and Western blotting utilize electrophoresis in their procedures. When comparing the two procedures, which statement is true?
A. Pulse-field gel electrophoresis is excellent for identifying minute genetic differences among strains of one species of an organism. B. Pulse-field gel electrophoresis separates DNA fragments while Western blotting separates proteins. C. The presence of antibodies in a patient specimen can be identified in the Western Blot. D. Pulse-field gel electrophoresis is used for genetic analysis. E. All of the statements are true.
Fluid entering which nephron portion is more dilute than normal body fluids?
a. Bowman’s capsule b. proximal tubule c. descending limb of loop of Henle d. ascending limb of loop of Henle e. collecting ducts
Which group of fungi has hyphae that are multinucleate and not divided by septa?
a. monokaryotic b. unicellular c. ascomycete d. coenocytic e. sporophyllous