Mycorrhizae help plants obtain water from the soil
Indicate whether the statement is true or false
TRUE
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Viruses such as MS2 and Qß pack additional information into their genomes through the use of overlapping genes.
Answer the following statement true (T) or false (F)
Campylobacter thioglycollate broth serves which purpose when used in the bacterial fecal culture?
a. Evaluation of general flora and predomi-nant species b. Selection of enteric pathogens such as Salmonella, Aeromonas, and others c. Inhibition of normal flora and selection of enteric pathogens d. Enrichment for Campylobacter spp.
What is the function of karyopherins?
a. They attach to chromosomes in order to activate heterochromatin. b. They coat chromosomes. c. They define the structure of Cajal bodies. d. They transport macromolecules into or out of the nucleus.
If heart rate is 100 beats per minute and cardiac output is 5000 ml/min, then stroke volume is ______.
a. 5,000 ml b. 500,000 ml c. 100 ml d. 50 ml