The majority of foodborne infections in the United States are NOT caused by a bacterial pathogen but instead are caused by ________, which is nicknamed “the 24-hour bug.”
a. astrovirus
b. henipavirus
c. norovirus
d. rotavirus
Answer: C
You might also like to view...
The presence of an extra X chromosome is more likely to result in a viable human fetus than an extra copy of an autosome because:
A. expression of genes from the X chromosome is restricted to early development of females. B. the X chromosome carries few genes, so dosage is not a problem. C. the X and the Y chromosomes do not recombine along most of their length. D. the X chromosome is the "female" chromosome. E. None of the above F. All of the above
In Figure 37-5, the structure labeled 2:
a. responds to a lack of light. b. protects the stem tip as it moves through the soil. c. is the first structure to emerge from the seed during germination. d. is called the coleoptile. e. surrounds and protects the young shoot.
Populations that were once considered separate species are sometimes reassigned to the same species because
A) they have evolved to look different from each other. B) they have evolved to look the same. C) they are no longer capable of interbreeding. D) it was discovered that they can produce viable and fertile offspring. E) they have been found to be genetically identical.
Which plant tissue may play a role in photosynthesis, nutrient storage, and plant structure?
A) meristematic B) ground C) dermal D) vascular