You are a doctor who examines a swollen and warm puncture wound on the hand of a patient. Next door, a vet examines the same puncture wound on the foot of a dog. Are you and the vet seeing the same immune responses?
A. Yes, because dogs have innate immune
systems but not adaptive immune systems.
B. Yes, because dogs have adaptive immune
systems but not innate immune systems.
C. No, because the immune response is
unique to humans.
D. Yes, because vertebrates have both
adaptive immune systems and innate
immune systems.
E. No, because the foot of a dog is a
completely different structure than the hand
of a patient.
D
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The characteristic ____________________ of a radioisotope allows us to determine the age of rocks and fossils using
a technique called ____________________. Fill in the blank(s) with the appropriate word(s).
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What will be an ideal response?
The protein coat of a virus is also referred to as its:
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