1. The central nervous system including brain and spinal cord.
2. The peripheral nervous system including nerves coming out from the brain and spinal cord, i.e., cranial nerves and spinal nerves.
3. The autonomic nervous system including sympathetic nervous system and parasympathetic nervous system.
The main food sources of the birds( the plentiful recourses within the environment occupied by the species)
Because they will grow really long if you don't
This is baby stuff tbh. But it is A. You need water to live. Food to live. Air obviously and a shelter
Answer: 1:3
Explanation: I'm here for you buddy
