What did han emperors do to keep the economy stable? plz me !

a.
stopped merchants from selling goods along the silk road

b.
bought grain, stored it, and resold it during times of low harvest

c.
introduced the first standardized coins

d.
refused to allow monopolies in any industries

In some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. the production of sterile male ligers is an example of read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. the production of sterile male ligers is an example of a postzygotic barrier the founder effect sympatric speciation a prezygotic barrier

Children begin to use tools at about what age? a. 18 months b. 2 years c. 1 year d. 6 months

The climax of the story “seventh grade” occurs when