A Team of Researchers Has Developed a Poison That Has

question 101

Multiple Choice

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?

• A) A chemical poisonous to lampreys could not also be toxic to organisms as ancestral as lancelets.
• B) Lamprey larvae and lancelets have very different feeding mechanisms.
• C) Lancelets do not have segmental muscles.
• D) Lancelets live only in saltwater environments.
• E) Lancelets and lamprey larvae eat different kinds of food.

---

Definitions:

Business Letter

A formal document used for communication between companies, or between a company and its clients, customers, or other external parties.

Multiple Cells

Refers to selecting or working with more than one cell at a time in spreadsheet software, for purposes like formatting or data entry.

Non-adjacent

Referring to items that are not directly next to each other or touching in position or sequence.

CTRL Key

A modifier key on a computer keyboard, used in combination with others to execute various commands and shortcuts.