An infectious dose is the ______

Fill in the blank(s) with the appropriate word(s).


minimum number of microbial cells required to cause an infection.

Biology & Microbiology

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The osmoregulatory/excretory system of an insect is based on the operation of _____

A) protonephridia B) metanephridia C) Malpighian tubules D) nephrons E) ananephredia

Biology & Microbiology

An antigen-bearing pathogen that breaches normal flora surface barriers triggers __________ immunity. Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology

Answer the question using the accompanying figure. Label B illustrates Plasmodium infection of the ____

a. kidney b. liver c. gall bladder d. stomach e. lung

Biology & Microbiology

The majority of crustaceans live in ____.

A. bodies of freshwater B. tropical rain forests C. marine habitats D. wetlands E. grasslands

Biology & Microbiology