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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Which of the following is not a characteristic of bacteria?
A. Organelles termed mitochondria are the site of ATP production. B. The cell wall is made of peptidoglycan or other distinct polysaccharides. C. Ribosomes are present as the site of protein synthesis. D. DNA is free in the cytoplasm.
The protein coat of a virus is also referred to as its:
a. cell wall. b. capsomer. c. armor. d. capsid. e. antigen.
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).
Originally, HIV was thought to be restricted to transmission during homosexual contact between gay men. List other ways in which HIV is currently known to be transmitted
What will be an ideal response?