8. Thousands of years ago, the jaws and teeth of jaguars varied in size more than they do today. During a period of climate change about 11,000 years
ago, the jaguars faced a shortage of food. There were fewer mammals to
eat, so the jaguars had to eat shelled reptiles. The jaguars with the largest
jaws and teeth could most easily eat the shelled reptiles.
Which of the following statements best explains why large jaws and teeth
are common characteristics in jaguars today?

Acar company is testing seatbelts using crash test dummies. the company finds that when cars come to a sudden stop, the crash test dummies' bodies continue to move forward. the seat belt keeps the crash test dummies from hitting the back of the seat in front of them. why do the crash test dummies' bodies continue to move forward even though the car stopped? a. the friction opposing their bodies' movement keeps them in motion. b. the inertia of their bodies keeps them in motion. c. the forward acceleration of the car keeps them in motion. d. the gravity pulling on the car keeps them in motion.