__________ are antibodies that activate the complement system

a. IgG and IgM
b. IgA and IgD
c. IgD and IgG
d. IgE and IgM
e. IgA and IgE


A

Biology & Microbiology

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On which portion of the visual system is the image upside down and backwards?

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A remora feeds on the scraps that escape from a shark's mouth while feeding. It has no clear positive or negative impact on the shark. This is an example of

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Which of the following events concerning a response to a stimulus comes first?

a. transmission b. reception c. action by effectors d. involvement of the brain and spinal cord e. integration

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Compare and contrast passive and active transport mechanisms, and give an example of each

What will be an ideal response?

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