When a New England Farm Is Abandoned,its Formerly Plowed Fields

question 10

Multiple Choice

When a New England farm is abandoned,its formerly plowed fields first become weedy meadows,then shrubby areas,and finally forest.This sequence of plant communities is an example of

• A)a trophic chain.
• B)secondary succession.
• C)primary succession
• D)evolution.

Identify the advantages of experimental research in establishing cause-and-effect relationships.

Recognize the importance of random assignment in experimental research to ensure group equivalence.

Differentiate between experimental and control groups within the experimental design framework.

Acknowledge the limitations and ethical considerations inherent in experimental research.

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