What does symons mean by a few lines

From which of the following literary works is this quotation most likely taken?

What from the columbian exchange had perhaps the biggest impact on the world?

Which of the following best describes how the texas constitution of 1876 has changed since its enactment? there has been only one major overhaul. there have been several major overhauls. the constitution has undergone piecemeal revision. the constitution has doubled in size nearly every year since its enactment. the constitution has remained essentially unchanged from when it was first enacted.