Explain the Randomized Block Design

question 88

Multiple Choice

Explain the Randomized Block Design
-A farmer wishes to test the effects of a new fertilizer on her corn yield. She has four equal-sized plots of land-- one with sandy soil, one with rocky soil, one with clay-rich soil, and one with average soil. She divides each of the four plots into three equal-sized portions and randomly labels them A, B, and C. The four A portions of land are treated with her old fertilizer. The four B portions are treated with the new fertilizer, and the four C s are treated with no fertilizer. At harvest time, the corn yield is recorded for each section of land. What is the response variable in this experiment

• A) the corn yield recorded for each section of land
• B) the type of fertilizer (old, new, or none)
• C) the section of land (A, B, or C)
• D) the four types of soil

Comprehend the characteristics of disturbances within ecosystems and their impacts on community structures.

Recognize the effects of chemical pesticides on aquatic ecosystems and fish populations.

Describe primary and secondary succession processes in different environments.

Explain models of species coexistence and competition for resources in ecosystems.

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Definitions:

Prediction

A statement about expected future events or outcomes based on current knowledge, data, or hypotheses.

Care Package

A package sent to someone to provide comfort, care, or necessities, often containing food, treats, and personal items, symbolizing support and thoughtfulness.

Supplemental Food

Additional food provided to wildlife or domestic animals beyond what they find or produce in their natural environments.

Evolved Function

The current role or activity that a particular trait or behavior serves in an organism, shaped by natural selection.