Examlex
Which of the following protozoans uses antigenic variation to circumvent the host immune system?
Substitutes
Products or services that can replace each other in use, where an increase in the price of one leads to an increase in demand for the other.
Substitutes
Goods or services that can replace each other in use, where an increase in the price of one leads to an increased demand for the other.
Natural Gas
A fossil fuel used as a source of energy for heating, cooking, and electricity generation, consisting mainly of methane.
Coal
A combustible black or brownish-black sedimentary rock, composed mostly of carbon and hydrocarbons, used as a fossil fuel.
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Q47: _ is the process of heating foods
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