Answer:
The answer is C
Explanation:
Homeostasis is, in my definition, maintaining normal levels. So, to maintain homeostasis of a heartbeat, the nervous system regulates heartbeats in order to prevent abnormal ones and to increase blood flow during exercise.
Discovering a new type of cell or bacteria
Answer:
more helium
Explanation:
the sun is mostly made up of helium and as it grows it becomes denser and the core holds more helium
