Painful swelling and rapidly spreading subcutaneous tissue necrosis is characteristic of a wound infection by
A) Clostridium perfringens.
B) Clostridium tetani.
C) Mycobacterium leprae.
D) Bacillus anthracis.
E) Clostridium difficile.
A
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In the biological sciences, the null hypothesis is usually rejected if the P value is _____
A. Greater than 1 B. Less than 0.30 C. Less than 0.95 D. Less than 0.05 E. Less than 1
Why must the life cycle of sexually reproducing species alternate between haploid and diploid stages?
A. Meiosis must occur at some point in the life cycle to prevent a doubling of chromosomes in each generation. B. Mitosis must occur at some point in the life cycle to prevent a reduction of chromosomes in each generation. C. The diploid stage allows for genetic recombination. D. Meiosis must occur at some point in the life cycle to prevent a reduction of chromosomes in each generation. E. Haploid cells cannot grow independently of diploid cells.
Which of the following contain prokaryotic organisms that are pathogenic to humans?
a. Archaea b. Eukarya c. Bacteria d. Mercaria
Shaun was in need of a kidney transplant. What is the most important thing that needs to match between him and the kidney donor?
A. PCR B. TCR C. MHC D. EKG E. HCG