Which of the following is NOT an advantage that fungal mycorrhizae bestow upon plants?
A. The fungus supplies water to the plant.
B. The fungus supplies mineral nutrients to the plant.
C. The fungus binds the soil and prevents erosion.
D. The fungus protects the plant against pathogens and toxins.
E. The fungus supplies organic food to the plant.
E. The fungus supplies organic food to the plant.
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Some cytoskeletal elements are more permanent than others. Which components of the cytoskeleton are dynamic structures?
A. microtubules B. microfilaments C. intermediate filaments D. both microtubules and intermediate filaments E. both microtubules and microfilaments
Adam was certain that he had Native American ancestors, based on tales that his grandfather told of the family history. He is disappointed when he takes a genetic ancestry test by sending a saliva sample to a testing company, because it does not confirm what he believed to be true. Adam may actually indeed have Native American ancestors because
A) DNA ancestry tests must be performed on blood to be accurate. B) DNA ancestry tests only work on females, because only they have mtDNA. C) the DNA sequences identified in ancestry tests do not reflect input from all lineages. D) the testing labs do not test for Native American Y chromosome sequences.
Although many fruits are dispersed by animals, fruits like the coconut are dispersed by
A. mosquitoes. B. butterflies. C. wind. D. bees. E. water.
When migrating, an inexperienced animal will rely on compass sense, while an experienced animal will rely more on map sense.
Answer the following statement true (T) or false (F)