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What type of immunity is supported by the TH2 subset,? Name a polarizing cytokine for this subset. 

What type of immunity is supported by the TH1 subset,? Name a polarizing cytokine for this subset. 

What would the B cell response look like in a mouse deficient in activation-induced cytidine deaminase? Why? 

What is the reasoning behind using CTLA-4 Ig (soluble CTLA-4) as a therapeutic agent?

Your book cites 3 signals necessary for CD4 T cells’ activation and differentiation. What are they? 

Echinoderm means

In what form do autotrophs pass carbon to heterotrophs?

Which body plan represents an acoelomate?

While wading in the ocean, you look down into the water and notice an umbrella-shaped, translucent animal. It swims by pulsing its body, and long tentacles trail behind it. One of them brushes your leg. Ouch! You feel a burning sensation where it touched you. The burning sensation, or sting, was caused when the _________ brushed your skin.

True or False?  Evaporation can occur over land and over bodies of water?