I believe the answer would be d
B. because it is dependent on something to manipulate (change) it, that is why it is called a dependent variable :)
Answer: Yes this chemical reaction obeys the laws of physics. Its very simple, let me explain.
Explanation:
When Iron(Fe) oxidizes it gains three oxygen atoms so it reacts to form Fe2O3 so it becomes bigger or explands. Its also sometimes called "oxide jacking".
Answer: option D) glucagon and insulin
Explanation:
The hormones glucagon and insulin are secreted by the islets cells found in the pancreas. Specifically, alpha cells of the islet produce glucagon, while its beta cells produce insulin.
Both hormones operate in opposite action, glucagon respond to low blood sugar levels while insulin respond to high blood sugar levels.
