Which of the following would not be used in a vaccine?
a. live virus
b. bacterial antigen
c. killed or inactivated virus
d. either bacterial antigen or killed or inactivated virus
A
You might also like to view...
Tetrodotoxin is a potent poison, produced by some newts, pufferfish, and blue-ringed octopus that affects sodium transport involved with the voltage gates in neurons. A friend swimming in the Caribbean is pricked by a pufferfish and gets very sick. The most likely action the poison takes is
A. Mimicking a symporter and allowing sodium to rush out and potassium to rush in. B. Mimicking an antiporter and allowing sodium to rush out. C. Blocking an antiporter so sodium cannot rush in. D. Blocking a symporter and keeping sodium from rushing in.
Nitrogen-fixing bacteria receive _______ from the plant in a mutually beneficial relationship.
Fill in the blank(s) with the appropriate word(s).
The process by which related species diverge in order to reduce competition is called ________ ________.
What will be an ideal response?
Many insects make larvae that are very different from the adults. What do you think are advantages of this system? Check all that apply.
A. Adults and offspring would not compete for potential mates. B. Adults and offspring would not compete for food sources. C. Adults and offspring would not be vulnerable to the same predators. D. Adults and offspring would not compete for habitats.