Poliovirus is ingested and gains access to tissues by which portal of entry?
a. Skin
b. Parenteral
c. Mucous membranes
d. All of these
e. None of these
Answer: c. Mucous membranes
You might also like to view...
A population of flowers is in Hardy-Weinberg equilibrium with an allele frequency for white flowers (w) of 40%. What percentage of the flowers will have the colored or dominant phenotype?
A. 16% B. 25% C. 40% D. 60% E. 84% Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about the Hardy-Weinberg principle? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Mycorrhizae
a. increase plant growth. b. are symbionts. c. allow a plant to absorb more water. d. increase the surface area for absorption of water and minerals. e. have all of these characteristics
In addition to a vertebral column, all vertebrates have
A. gills. B. scales. C. a distinctive head or skull. D. a tunic. E. an open circulatory system.
T or F: the right arm is ipsilateral to the right legt
What will be an ideal response?