Answer:
Option (3).
Explanation:
The homeostasis of the body is maintained by the feed back loop system. Two main types of the feedback loop system of the body are positive feedback system and negative feedback system.
Positive feedback system may be defined as the feedback in which the final product increases the output of that product. Pepsinogen is an zymogen that helps in the activation of pepsin enzyme. This enzyme helps in the digestion of protein. The digestion of pepsinogen by pepsin result in the more production of pepsin.
Thus, the correct answer is option (3).
Answer:
Plant Cell: Cell wall, chloroplast, large vaculoe.
Explanation:
Animal cells don't have any of those.
The molecules are absorbed by the small intestines, then start to the circulatory system which then transports the molecules throughout the body.
