<span>the feeding veins (xylem and phloem) are at work</span>
Iron is a mineral found in every cell of the body. Iron is considered an essential mineral because it is needed to make hemoglobin, a part of blood cells.
Answer:
C. A Turtle suns itself on a rock during a cool day
Explanation:
Because, the three other answers are an internal stimuli
I'm not 100% sure, but I'd say the availability of vaccines and medicine.