Which one of the following is the organ of the inner ear that contains hair cells which convert fluid pressure waves to nerve impulses?
A. vestibular System
B. semicircular canals
C. organ of Corti
D. statolith
C
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Fungi with hyphae _____
A) acquire their nutrients by phagocytosis B) have a body plan that is a unicellular sphere C) have cell walls that consist mainly of cellulose microfibrils D) are adapted for rapid directional growth to new food sources E) reproduce asexually by a process known as budding
A public health microbiologist plans to screen a particular bacterial species that was isolated from several patients in an intensive care unit to detect if any of the cells are penicillin-resistant mutants. What is the first step in conducting this experiment?
A. Set up an Ames test to see if any of the isolates are mutagenic. B. Determine whether or not wild type cells of the same bacterial species are susceptible to penicillin. C. Test the cells to see if they can grow on media to which penicillin has been added. D. Perform an antibiotic susceptibility test on the cells using antibiotics other than penicillin that are known to be effective.
In many groups of fungi, karyogamy and plasmogamy are separated in time and space. One potential advantage of this arrangement is that:
A. mating and spore production can occur in different environments. B. a diploid nucleus can form immediately. C. spores can be produced by meiosis instead of mitosis. D. the fungus can easily switch between sexual and asexual reproduction. E. the mycelium can grow more rapidly.
Describe the major differences between bryophytes and vascular plants
What will be an ideal response?