Sources for human infection with worms are all of the following except 

A. contaminated food.
B. contaminated air.
C. contaminated soil.
D. infected animals.
E. contaminated water.


Answer: B

Biology & Microbiology

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Tubular secretion is essential for ___

homeostasis.

a. pH b. water c. solute d. temperature e. sugar

Biology & Microbiology

Positive interference occurs when a crossover in one region of a chromosome reduces crossovers in nearby regions

Indicate whether the statement is true or false

Biology & Microbiology

The specialized reproductive structures of sac fungi are called

A) mycelia. B) asci. C) toadstools. D) basidia. E) zygospores.

Biology & Microbiology

If the phage types of isolates are identical, and a connection exists between the isolates, the chances are great that they are epidemiologically related.

A) True B) False

Biology & Microbiology