A team of researchers has developed a poison that has proven effective against lamprey larvae in freshwater cultures. The poison
is ingested and causes paralysis by detaching segmental muscles from the skeletal elements. The team wants to test the poison's effectiveness in streams feeding Lake Michigan, but one critic worries about potential effects on lancelets, which are similar to lampreys in many ways. Why is this concern misplaced
these creatures live only in salt-water environments.
Explanation:
These creatures are chordates, which are small thin shaped marine organisms. In this scenario it can be said that the scientists concerns are misplaced because they live only in salt-water environments. Therefore since they want to release the venom in a fresh-water environment there will be none of these creatures living there.