Which of the following is the function of our core muscles? Keeping good posture
Keeping our bodies balanced
Keeping our bodies stable
All of the above

all of the above.

Explanation:

The abdominal muscles support the trunk, allow movement and hold organs in place by regulating internal abdominal pressure. The deep abdominal muscles, together with muscles in the back, make up your core muscles. Your core muscles help keep your body stable and balanced, and protect your spine.

starvation is bad because your body needs nutrition and to deprive it of nutrition can cause problems with both health and fitness.

explanation:

it can make weight loss slow down over time, but it won't cause someone to gain weight depsite restricting calories. starvation causes weakness in the senses like thirst.