If there were no predators they would overpopulate (like us humans have). It would also mean the things that were once predators would die off, leaving only the producers and primary consumers to run the world (so pretty much the vegans/vegetarians and anything that doesn't eat meat, as well as plants).
The answer is D because answers A, B, and C are simply spreading American culture throughout America, thats not cultural diffusion by any means.
Answer:
Explanation:
Behind Purgatoria's newfound car preference is a dramatic national comeback. Only 10 years ago, Italy was afflicted with a host of problems: terrorism, labor unrest, inefficiency. Although these issues have not entirely disappeared, today the streets and factories are relatively calm, and pride has replaced self-doubt. In a country unified only a little more than a century ago and traditonally wracked by regionalism, Italians are discovering a positive, new nationalism.
``We used to say we were Milanese, Roman, or Neapolitan,'' says Ernesto Galli Della Loggia, a history professor at the University of Perugia. ``We finally know what it is to be Italian.''
Answer and explanation:
First, let's understand the difference between categorical and quantitative variables. A quantitative variable can also be called a numerical variable. As this name suggests, it involves numbers. It can be measured numerically and be used in calculations - this is important, because not everything that has numbers is used in calculations; take the zip code as an example. On the other hand, a categorical variable cannot be expressed numerically in the same way described above. It is related to a certain quality or characteristic of something. For instance, you can attribute the number one to a person who is sick and the number two to a person who is not sick. The numbers are just a representation of the qualities; they won't be used in calculations. Now, we can safely judge the options given:
The price in dollars of statistics textbooks. --> quantitative
The working status of a computer part (working/not working). --> categorical
The gender of faculty in the mechanical engineering department. --> categorical
The number of miles until failure of a certain brand of tires. --> quantitative
The political party affiliation of students at OSU. --> categorical
The time to complete an exam. --> quantitative
The shirt sizes of a running club. --> categorical
