Secondary endosymbiosis of red algae is thought to have led to the evolution of A. apicomplexans, dinoflagellates, and stramenopiles B. liverworts, lichen, and sea stars C. flowering plants, shrubs, and trees D. ferns, mosses, and fungi
An accountant who records revenue when a credit sale is made rather than waiting for the receipt of cash from the customer is A. violating generally accepted accounting principles. B. following the conservatism convention. C. following the consistency principle. D. following the accrual principle.
The buildup of oxygen in the atmosphere due to cyanobacteria on early earth likely caused organisms to evolve mechanisms to deal with this harmful gas. One of the mechanisms, which is considered to be a feature of the last common ancestor, is aerobic respiration primarily occurring in the ________. -A. chloroplasts – B. mitochondria – […]
Which of the following would be associated with bryophytes? Select all that apply.A. rootsB. non-tracheophyte C. sporangium D. xylem E. phloem
As seedless vascular plants evolved, the sporophyte phase of the lifecycle became increasingly dominant.One hypothesis about this sporophyte dominance suggests that there was selective pressure for the sporophyte to grow larger. Why might this be? – A. to improve flight of multi-flagellated sperm – B. to improve spore dispersal – C. to improve photosynthesis – […]
A microbiologist all of a sudden transferred many different viruses from a very hot alkaline medium to a cool acidic medium. According to the microbiologist, which virus is expected to withstand this extreme condition? -A. Polio virus – B. Mumps virus – C. Influenza virus – D. Chicken pox virus
Match the bacteria that would be best adapted to each habitat. (Each may be used only once.)A. a symbiont like E. coli B. a chemolithoautotroph like Nitrosomonas that can oxidize ammonia C. a psychrophile like Psychrobacter D. a thermophile like Thermus aquaticus E. a halophile like Salinibacter 1. Human intestine 2. Raw sewage 3. Salt […]
When influenza enters a host cell B. the entire virus enters the cell; the envelope and capsid are degraded. A. the genome enters the cell and the capsid is left outside the cell. C. the entire virus enters the cell; only the capsid is degraded. D. the entire virus enters the cell; the capsid and […]
If zinc deficiency occurs, the symptoms will present in what way? Select all that apply.A. stunted growth B. impaired collagen synthesis C. slow wound healing D. anemia E. weakness in bone and joint formation F. muscle spasms G. nonfunctioning carboxypeptidase and alcohol dehydrogenase
Which of the following are the most important factors in forming pores in soils? B. living organisms A. weathering patterns C. particulate sizes D. climate influences
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