Which of the following best describes the place adaptive immunity occupies in the animal kingdom?
A) Only mammals have adaptive immunity.
B) Only vertebrates, echinoderms, and mollusks have adaptive immunity.
C) Only vertebrates have adaptive immunity.
D) All animals except sponges have adaptive immunity.
E) Only humans have adaptive immunity.
Answer: C
You might also like to view...
The nitrogenous base that is only found in DNA and not in RNA is:
A. cytosine. B. uracil. C. adenine. D. thymine. E. guanine.
Carbon is introduced into the atmosphere by
all EXCEPT which of the following means? a. respiration b. diffusion c. burning of fossil fuels d. wind erosion of rocks e. tilling of soil
Why might a phylogeny based only on molecular data show a different pattern of relationships than a phylogeny of the same taxa that is based only on morphological traits?
What will be an ideal response?
Answer the following questions true (T) or false (F)
1. By themselves, soaps have only degerming activity, not antimicrobial activity. 2. Paul Erhlich discovered the first antibiotic. 3. Antisense nucleic acids interfere with protein synthesis.