Two Streptococcus Pneumoniae Strains, Agent 1 and Agent 2, Are

question 19

Essay

Two Streptococcus pneumoniae strains, agent 1 and agent 2, are administered to groups of animals at different doses. Mortality rates are then measured for the animals that received each dose level of each agent. Agent 1 is found to have an LD₅₀ of 400. Agent 2 is found to have an LD₅₀ of 600. Which one is producing a capsule and which one is not? How do you know?

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Definitions:

Emotionally

Pertaining to or involving emotions or the feelings.

Demands

Pressures or requirements that are placed upon an individual or system.

Expectations

Beliefs or anticipations about the way events, actions, or processes will unfold in the future, often influencing individuals' behavior and decision-making.

Pressure

The continuous physical force exerted on or against an object by something in contact with it, or the influence or stress on a person to perform or conform.