The islets of Langerhans are the hormone producing structures in the pancreas that manufacture insulin and glucagon
Answer:
excretory system
Explanation:
The excretory system is the system of an organism's body that performs the function of excretion, the bodily process of discharging wastes. ... There are several parts of the body that are involved in this process, such as sweat glands, the liver, the lungs and the kidney system. Every human has two kidneys.
It can be observed and tested
Answer:
The Red Cabbage Indicator can determine the PH based on what color the solution turns into.
Explanation:
Very acidic solutions will turn anthocyanin into a red color. Neutral solutions result in a purplish color. Basic solutions appear in greenish-yellow. Therefore, you can determine the pH of a solution based on the color that it turns the anthocyanin pigments in red cabbage juice.