Abstract/Result/Discussion
BSC2011
25 October 2022
The Effect of Light Exposure on Planaria Regeneration.
Abstract
Factors that affect animal regeneration have been researched multiple times
in the field of biology. In this experiment, we tested how the presence or absence
of light exposure affected the regeneration of Girardia tigrina, a planaria. Our
hypothesis stated that G. tigrina that were exposed to constant darkness would
regenerate faster when compared to G. tigrina that were exposed to constant light.
We tested this hypothesis by collecting twelve planaria and amputating part of the
head or tail region. Then we placed six planaria in a dark environment or an
environment constantly exposed to light. Even though the planaria shrunk, instead
of getting longer, the results showed that the planaria shrunk more when exposed
to constant light. Our results did not support the hypothesis, and they differed from
other literature that studied the effects of constant light on planaria regeneration.
However, there were some similarities between our experiment and experiments
that studied regeneration in other animal species