According to the passage, the
whistles are significant in part
because they:
a. show that dolphins
are capable of
expressing emotion
b. prompt questions
about the complexity
of dolphin
communication
c. aid dolphins in
navigating and
hunting
d. continue to spur
research into their
unknown purpose

(01.02 lc) angle abc has point e on ray ba and point d on ray bc. points e and d are equidistant from point b. to bisect angle abc, which of the following needs to be identified for the construction? the distance between points e and d the point in the angle that is equidistant from points e and d the endpoint of rays ba and bc the point outside of the angle that is equidistant from points e and d