When a lysosome fuses with a vacuole, A. they both return to the Golgi apparatus. B. division begins. C. they both disappear. D. protein synthesis begins. E. its contents are digested.

E. its contents are digested.

Explanation:

Basically, in human body's cell have organelles which are responsible for waste removal. Lysosome is one of the organelles which digest and remove the waste by digestive enzymes.

Now, what happen is that, vacuole consists of undigested material which are broken down by lysosomes only. That's why when lysosomes fuses with vacuoles then they pass the digestive enzymes into vacuole which will digest its contents.

b

explanation:

stress fractures occur largely in the feet and legs and are common in sports that require repetitive impact, primarily running/jumping sports such as gymnastics or track and field.