Which is an example of artificial selection ?

a flood drowns most of the lizards in an area. only lizards that can swim live to reproduce.

a farmer crosses two kinds of corn. he produces a new, better tasting type of corn.

two male wild turkeys fight. the weaker one is killed. the winner mates with all the females.

What is the main reason that attitudes are more often revealed in spoken rather than written language? a. in writing, we try to put the "best face" on what we write. b. we speak far more often than we write. c. in writing, we can more easily conceal our attitudes. d. in spoken language, we are often careless in our use of words.