Which of the following statements about epitopes are correct? I) B-cell receptors bind to epitopes. II) T-cell receptors bind to epitopes. III) There can be 10 or more different epitopes on each antigen
IV) There is a one-to-one correspondence between antigen and epitope. A) only I and III
B) only II and IV
C) only I, II, and III
D) only II, III, and IV
C
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Most seabirds are ovoviviparous
Indicate whether the statement is true or false
A group of species at any taxonomic rank in a phylogeny is a
A. taxon. B. hierarchy. C. outgroup. D. genome. E. clade.
Biologists generally classify animal behaviors by
A. both the way the organism acquired the behavior and how changeable the behavior is in the organism. B. the way the organism acquired the behavior. C. the number or proportion of the species that displays the behavior. D. how specific or general the behavior allows the organism to interact within its environment. E. how changeable the behavior is in the organism.
All of the following can increase the genetic diversity of a population except
A. migration of individuals into a population from another population. B. sexual reproduction. C. asexual reproduction. D. mutation.