Answer:
cosmic background radiation
Explanation:
hope this helps!!
Answer:
The atmosphere is a closed system
Explanation:
Because inside the atmosphere open system
awnser is high concentrations of oxygen
Answer:
conscious neural control
Explanation:
Neural control of digestive tract is unconscious achieved via the autonomic nervous system.
Local nervous system of the digestive system is called the enteric or intrinsic nervous system. The major components of this nervous system are two networks or plexuses of neurons:
• The myenteric plexus – controls digestive tract motility
• The submucous plexus - regulates gastrointestinal blood flow and controls epithelial cell function.
Answer:c) reduced stress about stds
Explanation:
