The enzyme pepsin is formed from pepsinogen through the action of

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

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.

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?