Bacteria Such as E

question 28

Multiple Choice

Bacteria such as E. coli and Salmonella produce invasins that bind host cells, thus causing the cells to

• A) engulf the bacteria.
• B) release TNF.
• C) release cytokines.
• D) produce iron- binding proteins.
• E) destroy the bacteria.

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Definitions:

Goods X

An unspecified product or commodity that is the subject of economic analysis or transaction.

Goods Y

A reference to a particular class or type of goods, often used in economic models.

Diminishing Marginal Rate

The Decline in the additional output produced when a new unit of input is added, with all other inputs held constant.

Substitution

The economic concept where consumers replace more expensive items with less costly alternatives, or firms replace inputs with more economical options.