It Has Been Discovered That Many Plants Synthesize Molecules That

question 114

Multiple Choice

It has been discovered that many plants synthesize molecules that destroy the corpora allata, which are the structures responsible for synthesis of juvenile hormone, and that insects exposed to these molecules do not molt. Which of the following statements reflects how levels of juvenile hormone disrupt the insect life cycle?

• A)Exposure to juvenile hormone prevents the larvae from developing into adult insects.
• B)Exposure to juvenile hormone causes juvenile insects to die.
• C)Reduced juvenile hormone causes insects to molt prematurely into sterile adults.
• D)Reduced juvenile hormone prevents molting.

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Definitions:

Pteridophyta

Pteridophyta refers to a group of vascular plants that reproduce via spores and do not produce flowers or seeds, commonly known as ferns.

Anthocerophyta

A phylum of plants known as hornworts, characterized by a flat thallus and a sporophyte that resembles a long horn.

Bryophyta

A group of non-vascular plants comprised of mosses, liverworts, and hornworts, noted for their prevalent gametophyte stage.

Horsetails

A group of vascular plants in the genus Equisetum, known for their jointed, hollow stems and reproduction through spores, not seeds.