A Scientist Hypothesizes That the Larvae of a Particular Species

question 12

Essay

A scientist hypothesizes that the larvae of a particular species of swallowtail butterfly uses olfaction (the sense of smell) to locate their preferred host plants in the carrot family. To test the hypothesis, the scientist uses extracts from various plants-including some from the carrot family-to moisten small pieces of paper arranged randomly under a wire screen. Swallowtail larvae are released on the wire screen but cannot come into direct physical contact with the pieces of paper. What is the advantage of this experiment compared with simply presenting the larvae with a choice among various plants?

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Definitions:

Dreaming

The experience of envisioned images, sounds, or other sensations during sleep.

Tranquilizers

Medications that induce a state of relaxation and calmness.

Sleep Apnea

A sleep disorder characterized by pauses in breathing or periods of shallow breathing during sleep, which can lead to disrupted sleep and other health issues.

Hypnotic Responsiveness

An individual's ability to respond to hypnotic suggestions and enter a state of hypnosis.