Insects and Bacteria Appear to Team Up Against a Pesticide

question 37

Multiple Choice

Insects and bacteria appear to team up against a pesticide that is commonly sprayed on crops. The bean bug Riptortus pedestris is a common soybean pest and in a recent study was shown to acquire resistance to a common insecticide. This resistance is related to the presence of bacteria ( Burkholderia sp.) living within its gut. In this mutually beneficial relationship, more than 100 million bacteria can live within the insect's gut. Evidence suggests that these bacteria are able to break down the pesticide into carbon dioxide, which is used by the bacteria, and harmless waste products are then secreted. In a recent study, researchers fed bacteria-infested bean bugs and bacteria-free bean bugs a diet of soybean seedlings that had been treated with the pesticide. Most of the bacteria-infested bean bugs survived after eating the treated soybeans, but 80 percent of the bacteria-free bean bugs died. In the experiment, what would be considered the control group?

• A) the bacteria-free bean bugs
• B) the bacteria-infested bean bugs
• C) the use of pesticides on the soybean plants
• D) the number of deaths caused by eating the plants

Recognize the role of hormones in sleep regulation and the impact of sleep deprivation on hormonal balance.

Understand the typical content and emotional tone of dreams and factors influencing them.

Recognize different types of sleep-related phenomena, including sleepwalking and sleeptalking.

Identify effective strategies for improving sleep and managing insomnia without medication.

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Definitions:

Prenatal Factors

Influences or conditions before birth that can affect the development and health outcomes of the fetus.

Early Life Experiences

Experiences during the developmental phase of life that can have a profound effect on an individual's future behavior and mental health.

Brain Development

The process involving the growth and maturation of the brain, encompassing changes in size, complexity, and functional capacity from birth through adulthood.

Schizophrenia

A chronic mental disorder characterized by distortions in thinking, perception, emotions, language, sense of self, and behavior.