Ectomycorrhizae, associations in which the fungal hyphae surround but do not penetrate the cell walls of the plant roots, usually involve
A. ascomycetes and zygomycetes.
B. ascomycetes and basidiomycetes.
C. basidiomycetes.
D. zygomycetes.
E. ascomycetes.
Answer: C
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In the fungus pictured, which of the following structures is indicated by B?
A. hyphae B. mycelium C. fruiting body D. spores E. rhizoid
In this scenario, how are the soap, dirt/oil, and water arranged at the molecular level?
A) The soap molecules encase the dirt/oil within a small droplet that has a hydrophobic exterior and a hydrophilic interior. B) The soap is converted into a lipid that binds to the dirt/oil while repelling the water. C) The soap molecules encase the dirt/oil within a small droplet that has a hydrophilic exterior and a hydrophobic interior. D) Water and dirt/oil form covalent bonds inside a small droplet that has a soap-based outer membrane.
All fastidious microorganisms require which of the following for growth?
A. Extra nutrients (such as whole blood) B. Temperatures near normal for the human body C. Iron D. Oxygen
You walk down into your basement to find that the carpeting on the floor is damp. Concerned, you look around for large puddles of water or broken pipes, but find none. In fact, only the basement floor and carpeting is damp. You realize that water must have wicked into the carpet from the floor by ________.
A. adhesion and solubility B. adhesion, cohesion, and solubility C. cohesion and solubility D. adhesion and cohesion