The symptoms of an immune complex reaction are due to

A) destruction of the antigen.
B) complement activation.
C) phagocytosis.
D) antibodies against self.
E) cytokines.


B

Biology & Microbiology

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A population can decrease in size as a result of which of the following processes?

A. an increase in emigration B. an increase in death rate C. an increase in predation D. All of the answer options are correct. E. None of the answer options is correct.

Biology & Microbiology

HoxC-6 is always expressed posterior to vertebrae 7 during the development of every vertebrate

Indicate whether the statement is true or false

Biology & Microbiology

Lipid enclosed collections of molecules formed the first ________

a. cells b. bacteria c. mitochondria d. fungi e. protocells

Biology & Microbiology

Four of the five regions listed below are experiencing less than 1.9 percent annual population growth

Select the exception.

a. Western Europe b. North America c. Africa d. Australia e. Russia

Biology & Microbiology