Soil Contains Human Pathogens,for Instance _____

question 36

Multiple Choice

Soil contains human pathogens,for instance _____.

• A)Clostridium tetani
• B)Bacillus anthracis
• C)Clostridium perfringens
• D)all of these choices

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Definitions:

Arid Islands

Islands with a severely dry climate, receiving minimal annual rainfall, which affects their ecosystems and water resources.

Genetic Change

Alterations in the DNA sequence of an organism's genome, which can result in variations within a population over time.

Population

A group of individuals of the same species living in a specific area who interbreed.

Artificial Selection

The selection by humans of traits that are desirable in plants or animals and breeding only those individuals that have the desired traits. Compare with natural selection.