Harrison and van Buuren identified a phosphate transport protein in Glomus versiforme, which is a
a. carnivorous plant.
b. bacterium that parasitizes plants.
c. mycorrhizal fungus.
d. bacteroid.
e. parasitic plant.
C
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You are comparing the events of meiosis I in cells from several different organisms. You come across one species in which you do not observe any chiasmata. The best conclusion to make is
A. there is no crossing over between non-sister chromatids B. kinetochores of sister chromatids do not fuse C. the chromosome pairs will not assort independently D. chiasmata will form during meiosis II
Which of these structures is derived from an ancestral air-breathing lung in ray-finned fishes and is
used to increase buoyancy?
a. swim bladder b. spiral valve c. operculum d. atrium e. lateral-line system
What protein produces bioluminescence?
a. Luciferin b. Photophorin c. Luciferase d. Photophorase
In some plants, the direction of growth changes in
response to contact with an object. This is called __________. Fill in the blank(s) with the appropriate word(s).