Campbell Biology (11th Edition)

Published by Pearson
ISBN 10: 0-13409-341-0
ISBN 13: 978-0-13409-341-3

Chapter 50 - 50.3 - Concept Check - Page 1121: 1

Answer

Planarians can detect light, but they cannot visualize images like flies can.

Work Step by Step

Flies have a much greater need to be able to visualize in order to navigate their environments, something that planarians do not necessarily need. The detection of light is sufficient for their purposes without having delicate eyes to protect.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.