Upgrade to access all content for this subject
Students survey fish populations in two ponds that are ten miles apart. Their data are displayed in the graph below.
Created for Albert.io. Copyright 2016. All rights reserved.
Which of the following is a possible explanation for the different percentages of eye numbers?
Fish are migrating from Pond 1 to Pond 2.
Pond 1 has a more diverse ecosystem with more available niches than Pond 2.
Pond 2 has been exposed to more mutagenic chemicals than Pond 1.
Pond 2 has an ecosystem in which natural selection favors more eyes.