A Scientist Is Hoping to Compare the Mean Levels of DDT

question 84

Multiple Choice

A scientist is hoping to compare the mean levels of DDT toxin found in three species of fish in a local river. He randomly samples 50 of each species to use in the analysis. For each fish, he
Measures the amount of DDT toxin present. Ideally he will be able to rank the species based on the
Mean level of toxin found in each of the three species. How many factors are present in this study?

• A)3
• B)50
• C)6
• D)1

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Definitions:

Rod-Shaped

Describes an object or organism having a long, narrow, cylindrical form, similar to a rod or stick.

Paired Structures

Structures in biology, architecture, or other fields that occur or function in pairs, often symmetrically.

Chromosomes

Thread-like structures located inside the nucleus of animal and plant cells, made of protein and a single molecule of deoxyribonucleic acid (DNA).

Basic Units

The fundamental components or building blocks of a system, structure, or theory.