About how many species become extinct each year?

20,000

10,000

37,000

50,000

When the consequence of a behavior increases the likelihood that the behavior will be repeated - for example, when a food pellet rolls down the chute after a rat pushes the correct lever - the behavior is said to have been:?

Which of the following are reasons that the us would have a strong currency abroad?

Which group explored the North Atlantic Ocean near their homeland between 700 CE and 1100 CE? A. Vikings B. Spanish C. English D. French

It's been a very busy day, and you have just gotten a customer complaint. This is the third time today that this same customer has complained to an employee about the same problem. However, it's the first time that you have spoken with her.

Sam built strong and good relationships with family and the military, which created a stake in conformity. Positive relations that support conventional behavior and inhibit deviant behavior are called

How might the government react to a downturn in the economy?

When did kenya gain indepe

What were 3 ways that enslaved people resisted slavery?

In Santa Fe District v. Doe, the court ruled that student-led prayer at a school football game failed the "Lemon Test" because it was "too entangled." What does this mean? A.

How did Egypts geography affect its farming methods