Question

1. pillbugs are placed in a container where they have a choice of a wet or a dry environment. researchers record how much time was spent on each side.

Explanation:

Identify the experimental setup

The experiment places pillbugs in a chamber with two distinct environments: a wet side and a dry side. This setup is designed to observe how an environmental factor influences animal behavior.

Determine the independent variable

Using the Independent Variable concept, we identify the factor manipulated by the researchers. Here, the environmental moisture level (wet vs. dry) is the condition being changed to observe its effect.

Determine the dependent variable

Using the Dependent Variable concept, we identify the factor being measured. The researchers record the amount of time the pillbugs spend on each side, which is the responding behavior.

Formulate the scientific hypothesis

Using the Scientific Hypothesis concept, we can propose a testable statement: if pillbugs prefer moist environments to prevent desiccation, then they will spend significantly more time on the wet side of the chamber than the dry side.

Answer:

Based on the experimental setup described:

• Independent Variable: The moisture level of the environment (wet vs. dry).
• Dependent Variable: The amount of time the pillbugs spend in each environment.
• Hypothesis: If pillbugs require moisture to survive, then they will spend more time in the wet environment than in the dry environment.