What is one significant way transportation changed in the United States in the first half of the nineteenth century? a)Canals we
re built, primarily in the North. b)Roads were built, primarily in the South. c)Railways were built, only in the North. d)Railways were built, only in the South.
A spider weaving a web would be an "innate," type of behavioral adaptation, since this skill is engrained in the DNA of the spider, and it does not need to be taught by a parent or peer.
