The Herbicide Atrazine Is a Known Endocrine Disruptor to the Development

question 36

Multiple Choice

The herbicide atrazine is a known endocrine disruptor to the development stages of several animal species, including fish, reptiles, and amphibians. Scientists interested in studying long-term effects of exposure to atrazine on mating behaviors compared an all-male population of sexually mature African clawed frogs (Xenopus laevis) exposed to atrazine (Atz) to a sexually mature population of African clawed frogs not exposed to atrazine (Con) . Amplexus is defined as the mating position of frogs.

-Part B indicates that

• A) nontreated males were more successful in copulation with females than atrazine-treated males.
• B) atrazine-treated males were more successful in copulation with females than nontreated males.
• C) there were fewer atrazine-treated males than nontreated males.
• D) atrazine-treated males are unable to mate.

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Definitions:

Symptoms of Depression

The signs and emotional, physical, and cognitive manifestations associated with the mood disorder depression, such as persistent sadness, loss of interest, and fatigue.

Ethnic Group

People whose ancestors were born in the same region. Usually they share a language, culture, and/or religion.

Depression Rates

The prevalence of depression within a specific population, often measured to understand mental health trends and needs for intervention.

Immediate Social Context

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