A virulence factor is one which
A) allows a microbe to invade and establish itself on the host.
B) allows a host to evade infection.
C) normal flora use against invading microorganisms.
D) invading organisms use against normal flora.
Ans: A) allows a microbe to invade and establish itself on the host.
You might also like to view...
Nociceptors can respond to nearby tissue damage by sensing cytosolic factors released by damaged cells. Such "algogenic agents" can cause pain sensation even in the absence of tissue damage. What might be a practical use for such an agent?
A. a nonlethal riot control measure B. an anesthetic drug C. a treatment for damaged tissue D. a tasty food additive Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about nociceptors? What other information is related to the question? Choose Answer Given what you now know, what information 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?
Species richness refers specifically to
a. the numbers of individuals of each species present. b. the ability of larger animals to enrich themselves by successfully preying on smaller ones. c. the number of different species in the habitat. d. the feeding levels at which the animals are located. e. none of these.
Microfilaments and microtubleus
What will be an ideal response?
Freshwater fish drink water all the time to compensate for their tendency to lose water.
Answer the following statement true (T) or false (F)