Which of the following nitrogenous bases is usually found in RNA but not in DNA?
A. Guanine
B. Thymine
C. Uracil
D. Adenine
Answer: C
Biology & Microbiology
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__________ attach a gametophyte to soil or another surface. Fill in the blank(s) with the appropriate word(s)
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Which of the following is the last structure that
a sperm travels through as it leaves the body? a. ureter b. urethra c. vas deferens d. ejaculatory duct e. epididymis
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Decompression sickness is caused by:
a. dissolved gases coming out of solution and forming gas bubbles. b. the concentration of hemoglobin dropping markedly. c. chloride ions precipitating from solution. d. the pH of the blood rising too rapidly. e. carbonic anhydrase being inhibited.
Biology & Microbiology
Which type of infection can be caused by septicemia?
a. Bacteremia b. Focal infection c. Local infection d. Viremia e. Systemic infection
Biology & Microbiology