Use the Following Information to Answer the Question

question 68

Multiple Choice

Use the following information to answer the question.
There is much discussion in the media about protecting biodiversity. But does biodiversity really matter? Canadian and Swiss researchers wanted to know if the diversity of arbuscular mycorrhizal fungi (AMF) was important to the productivity of grasslands (M.G.A. van der Heijden, J. N. Klironomos, M. Ursic, P. Moutoglis, R. Streitwolf-Engel, T. Boler, A. Wiemken, and I. R. Sanders. 1998. Mycorrhizal fungal diversity determines plant biodiversity, ecosystem variability, and productivity. Nature 396:69-72) . Specifically, they wanted to know if it mattered which specific AMF species were present, or just that some type of AMF was present. They grew various plants in combination with one of four AMF species (A, B, C, and D) , no AMF species (O) , or all four AMF species together (A + B + C + D) ; and they measured plant growth under each set of conditions. All plant species were grown in each plot, so they always competed with each other, with the only difference being which AMF species were present.
On the graphs, the x-axis labels indicate the number and identity of AMF species (bar 0 = no fungi; bars A - D = individual AMF species; bar A + B + C + D = all AMF species together) . The y-axis indicates the amount (grams) of plant biomass for the species shown in italics above each graph

In graph b in the figure, which of the following best explains the data given about Lotus corniculatus?

• A) This plant grows best when AMF taxa A or C is present.
• B) Lotus corniculatus does not form mycorrhizal associations.
• C) Mycorrhizal fungi parasitize the plant's roots when they are present, reducing its growth.
• D) This plant forms multiple AMF associations, growing best with increased fungal diversity.

Explain the effects of media and cultural representations on gender norms and stereotypes.

Describe the experiences related to gender inequality and discrimination in workplaces and educational institutions.

Understand the phenomenon and social implications of the gender-based wage gap and occupational segregation.

Explain the concepts of transgender, transsexual, and intersex identities within the context of gender studies.

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Definitions:

Heuristic

A problem-solving approach that employs a practical method or various shortcuts to produce solutions that may not be perfect but are sufficient for the immediate goals.

Decisive

Having the power or quality of settling an issue or producing a definite result.

Absolute Pitch

The ability to identify or reproduce a musical note without any external reference.

Savant Syndrome

A rare condition where someone with significant mental disabilities demonstrates certain abilities far in excess of average.