Scientists Believe That a Major Factor Promoting the Adaptive Radiation

question 52

Multiple Choice

Scientists believe that a major factor promoting the adaptive radiation of mammals was probably

• A)their development of fur.
• B)the mass extinction of most dinosaurs, an event that opened up new ecological opportunities.
• C)internal fertilization.
• D)the origin and diversification of flowering plants.

Understand the concept of disinflation and its effects on the economy.

Differentiate between short-run and long-run Phillips curves and their shifts.

Recognize the impact of world commodity prices on the economy.

Calculate the economic cost associated with reducing inflation using the sacrifice ratio.