Acids help digest proteins by: Group of answer choices neutralizing them partially denaturing them preventing their absorption cleaving pepsinogen

Which of the following elements does soil need in the largest quantities to sustain plant life? a. copper b. iron c. nitrogen d. zinc

15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.

Ruby is conducting an investigation. an advantage of her design is that she can use a large range of variables, with that she can not be sure that one variable is the cause of another. what kind of investigation is ruby most likely conducting?