<span>The Autonomic nervous system is also known as the Sympathetic and Para sympathetic nervous system. The Sympathetic nervous system (SNS) is best known for its stimulation of the body’s fight-or-flight (emergency) response, maintaining the body's homeostasis balance like sweating to disspation of heat. It is related more with activities that requires mental or physical alertness such as work and exercise. Conversely, the parasympathetic nervous system is responsible for "rest and recovery" or relaxation responses like sleeping, eating and watching TV. While the SNS increases heartbeat, and blood vessels; the parasympathetic nervous system decreases your heartbeat, relaxes your blood vessels and your muscles</span>
Answer:
A. Natural selection
Explanation:
Only the strongest will survive.
When you do that the fish will die. That is because it will take too much water in it and die from it, or rather, the fish's cells will take too much water in.
Scientific Theory change but not thrown away because scientist
continue looking for possibilities and exact proportion to prove such theory,
though it is change because they always conducted hypnosis in every theory and
once it proves something different they conduct another hypothesis for more
actual evidence.
Largest- Oak trees Smallest- Toads
