Which of the following facts supporting advanced toothed whale intelligence is correct?
A) Some wild dolphins have been reported to attack drowning humans.
B) Their brains are highly compartmentalized.
C) They can communicate with humans by using sound.
D) They have large brains relative to their body size.
E) They resist being trained to respond to human hand signals.
D
You might also like to view...
_______________ is the destruction of the productive capacity of an area of land.
Fill in the blank(s) with the appropriate word(s).
A La Niña tends to encourage dry conditions in which of these areas?
A) The southern United States B) Pacific Northwest of the U.S. C) Indonesia D) South Asia
?Match the term with the most appropriate description.
A. ?daytime temperatures are high in summer and low in winter with moderate rainfall and sparse vegetation consisting mostly of widely dispersed, drought-resistant shrubs B. ?deep roots to tap into groundwater C. ?seasonal drought, grazing by large herbivores, and occasional fires D. ?scattered clumps of trees; warm temperatures year-round with alternating dry and wet seasons E. ?these treeless plains are bitterly cold, swept by frigid winds, and covered with ice and snow
Which of the following amino acids functions as a hormone?
A) leucine B) lysine C) thyroxine D) tyrosine