ENSO refers to a periodic warming of surface ocean waters
____________________ Indicate whether the statement is true or false.
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The figure illustrates
a. repression of the lactose operon. b. promotion of the lactose operon. c. formation of a repressor molecule. d. attachment of lactose to DNA. e. all of these.
The central nervous system of a mammal includes the
a. brain. b. spinal cord. c. brain and spinal cord. d. brain, spinal cord, and every major nerve in the body.
Pheromones
a. are social signals. b. are detected by the vomeronasal organ in reptiles and most mammals. c. may serve as sex attractants. d. are not detected or responded to by humans. e. include all EXCEPT "are not detected or responded to by humans.
Terrestrial organisms lose water through evaporation. In what ecosystem might an entomologist find a good study organism to examine the prevention of water loss?
A) wet rain forest B) desert C) prairie D) chaparral