Lab: Earthworm Behavior

Question 1

Throughout the reflection, make sure you have a copy of the Student Guide and your data tables. Use the drop-down menus to complete the statements.

Revolt · Accepted Answer

This experiment was divided into two parts. For the first part of the experiment, the was intentionally manipulated. This was the independent variable. The dependent variable observed was the .: exposure to dryness; This experiment was divided into two parts. For the first part of the experiment, the was intentionally manipulated. This was the independent variable. The dependent variable observed was the .: earthworm behavior; For the second part of the experiment, the was intentionally manipulated. This was the independent variable. The dependent variable observed was the .: exposure to strong odor; For the second part of the experiment, the was intentionally manipulated. This was the independent variable. The dependent variable observed was the .: earthworm behavior

Question 2

What did you include in your response? Check all that apply.

Revolt · Accepted Answer

The anterior end contains an organ that can detect smells.

Question 3

tentwenty✔ thirtyforty

Revolt · Accepted Answer

✔ thirty

Question 4

Use the drop-down menus to complete the statements.

Revolt · Accepted Answer

When ammonia was waved at the end, the earthworms reacted by quickly pulling back from the odor.: anterior; When ammonia was waved at the end, the earthworms showed no reaction or change in behavior.: posterior

Question 5

Which behavior was observed when one end of the earthworm was placed on a wet paper towel while the other end was placed on a dry paper towel?

Revolt · Accepted Answer

The earthworm moved so that its entire body was on the wet paper towel regardless of which end started on the wet paper towel.

Question 6

What are the features labeled in the diagram?

Revolt · Accepted Answer

A is the .: clitellum; B is the .: segments

Question 7

Use the diagram to identify the four regions of the earthworm.

Revolt · Accepted Answer

122831; 122832; 122833; 122834

Question 8

In which location are you most likely to find an earthworm?

Revolt · Accepted Answer

a river bank

Question 9

Which end of an earthworm contains an organ that can detect smells? Use observations from the lab to support your answer.

Revolt · Accepted Answer

Answer

Lab: Earthworm Behavior Answers

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