Which sentence describes an example of natural selection?
a. an insect has a random gene mutation that gives it an unusual coloring.
b. pedigree dogs are selected by humans for breeding.
c. a child inherits a rare genetic disorder from his parents.
d. cheetahs with longer legs are more likely to capture prey.

Who built the first turnpikes in the united states? a) the national government b) state governments c) private companies d) town councils

From the examples below, choose the best examples of industries in african countries and their influence on economic development. select all that accurately represent african economies and factors of production. because agriculture remains central to the success of the mali's economy, any change to climate (such as drought) or price of crops significantly affect the country as whole. the thriving manufacturing industry in chad's northern region sustains the country's economy as a whole. egypt's manufacturing and export of cotton is the primary focus of the economy in the country. morocco serves as a representative of service industries in africa with a growing tourism market.

Which article of the us constitution addresses the issue of interpeting the laws of the united states