Some Nematode Worms Suck Plant Juices from the Roots of Plants

question 32

Multiple Choice

Some nematode worms suck plant juices from the roots of plants and are economically important agricultural pests. Some fungi are usually decomposers of plant material, but some trap and kill nematodes at times. Arthrobotrys traps and kills nematodes, especially when they lack nitrogen sources. These two facts suggest that farmers could find Arthrobotrys an important tool in combating nematode infestations. Which of the following research questions would make a good starting point for developing such a defense against plant-sucking nematodes?

• A) Does nitrogen fertilization of crops affect the likelihood that Arthrobotrys will trap and kill nematodes?
• B) Do nitrogen-fixing bacteria provide nitrogen to the fungi?
• C) What is the evolutionarily oldest method of trapping nematodes?
• D) What mechanisms do nematodes have that could allow them to escape from Arthrobotrys?

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Definitions:

Gender Norms

The societal expectations and conventions that dictate behaviors, actions, and roles based on one's perceived gender.

Mass Media

Various forms of media, including television, newspapers, radio, and the internet, that reach large audiences simultaneously and have significant influence on public opinion and culture.

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Distinctive clothing worn by members of the same organization or body or by children attending certain schools, to signify membership or to promote equality.

Microaggression

Indirect, subtle, or unintentional discrimination against members of a marginalized group.