Species of Both Shigella and Streptococcus

question 34

Multiple Choice

Species of both Shigella and Streptococcus

• A) invade host cells AND cause a rash.
• B) produce a toxin AND cause a rash.
• C) cause diarrhea AND are delivered by flea bites.
• D) are delivered via flea bites AND produce a toxin.
• E) invade host cells AND produce a toxin.

---

Definitions:

Quota Sampling

Sampling that attempts to replicate in a sample the features that the researcher thinks are important in the population.

Random Sampling

A technique where every individual of a population has an equal chance of being selected to form a sample, ensuring the sample’s representativeness.

Random Sampling

A method of selecting a sample from a statistical population in such a way that every possible sample has an equal chance of being selected.

Multistage Cluster Sampling

Sampling based on first sampling large units such as states or provinces and then sampling smaller units such as towns, city blocks, and so on.