Which immunoglobulin is the first type to be made during the primary response to an antigen?

A. IgA
B. IgD
C. IgM
D. IgE
E. IgG


Answer: C

Biology & Microbiology

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Enzymatic reactions convert products into substrates

a. True b. False Indicate whether the statement is true or false

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What are the two primary factors that can cause deciduous trees to drop their leaves? What will be an ideal response?

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An exponential growth curve looks like ________________

A. a curved line that increases more and more steeply over time B. a curved line that increases steeply at first and then levels out and stops increasing C. an increasing straight line D. a complete circle E. a series of large peaks and valleys

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Instead of having synapses between two nerve cells, why not just "wire" the two cells together somehow?

What will be an ideal response?

Biology & Microbiology