Of the following, which is the least recently
formed clade?
a. humans, monkeys, apes
b. birds, alligators, lizards
c. horses, donkeys, zebra
d. dogs, wolves, foxes
e. conifers, ferns, yeast
E
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An advantage of (attenuated/inactivated/subunit) vaccines is that they usually elicit cell-mediated immune responses
What will be an ideal response?
A researcher hypothesizes that crocodile gender is determined by the incubation temperature of the egg. The hypothesis states that an average nest temperature of 32-33°C results in the birth of male crocodiles while cooler and higher incubation temperatures result in female crocodiles.What is a valid, testable prediction based on this hypothesis?
A. Male eggs will hatch at 32°C, while female eggs will not hatch at 32°C. B. Male crocodiles will prefer temperatures of 32-33°C. C. Male eggs will be more fragile than female eggs. D. Incubation of any crocodile egg at 32°C, will result in a male crocodile. E. Crocodiles arrange the gender of offspring by manipulating incubation temperatures.
A person who has been exposed to rabies receives both HRIG (human rabies immunoglobulin) injected near the bite site and the rabies vaccine. What does this strategy represent?
A) active immunization B) passive immunotherapy C) viral hemagglutination inhibition D) passive immunotherapy combined with viral hemagglutination inhibition E) active immunization combined with passive immunotherapy
The (atoms/isotopes/stereoisomers) of an element vary in the number of neutrons in the nucleus.
Fill in the blank(s) with the appropriate word(s).