You Take a Large Sample of Soil and Put It

question 36

Multiple Choice

You take a large sample of soil and put it all into individual pots.You then divide the pots into two groups: In the first group,every pot of soil has been sterilized,and thus contains no bacteria.In the other group,none of the pots of soil has been sterilized.You plant soybean seeds in all the pots.What would you expect to see as the seeds sprout and grow?

• A) The plants growing in the sterile soil are bigger because they have not been exposed to any bacteria.
• B) The plants growing in the non-sterile soil are bigger because have mutualistic associations with nitrogen-fixing bacteria.
• C) The plants growing in the sterile soil are bigger because they do not have to compete with nitrogen-fixing bacteria in order to obtain usable nitrogen.
• D) The plants growing in the non-sterile soil are bigger because saprotrophic bacteria produce nutrients for them.
• E) There is no difference in size between the plants growing in the sterile soil and those in the non-sterile soil.

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Definitions:

Provincial Health Care

Healthcare systems managed and funded by the provincial governments within a country to provide medical services to its residents, often found in federations like Canada.

Cognitive-Behavioural Therapy

A psychotherapeutic approach that addresses dysfunctional emotions, behaviors, and cognitions through goal-oriented, systematic procedures.

Aaron Beck

A psychiatrist known for developing cognitive therapy and for his research on depression, which has influenced treatments for various disorders.

Techniques

Methods or ways of performing tasks or procedures that are often specific to a particular field or activity.