Weak acid and weak bases that can add or remove protons (h+) to fluids in the body, thereby to keep ph levels at homeostatic levels, are called

Weak acid and weak bases that can add or remove protons (h+) to fluids in the body, thereby helping to keep pH levels at homeostatic levels, are called BUFFERS.

Buffer is a solution that resists changes in pH when acid or alkali is added to it. Buffers typically involve a weak acid or alkali together with one of its salts.

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.