Answer: First Question.
A. PARASYMPATHETIC BRANCH
Second Question (Question 3)
D. THE MOLECULAR GATES OPEN TO ALLOW SODIUM IONS INTO THE NEURON
Explanation:
PARASYMPATHETIC BRANCH
The Parasympathetic Nervous which at times is referred to as the "rest and digest" system is one of 3 divisions in the Autonomic Nervous System.
It conserves energy as it slows the heart and increases intestinal and gland activity. It essentially takes over when one relaxes from an exciting ordeal.
ACTION POTENTIAL
During an Action Potential, a part of the neural membrane/ molecular gates open up to allow positively charged ions inside the cell and negative ones out.
With sodium being a positive ion, channels open up and positive sodium cells surge into the cell in preparation for an electrical signal being sent down the axon once a threshold has been reached.
Answer:
There was lots of new crops such as corn, which was good, but a negative is the enslavement of African people who were taken from their home.
Explanation:
Hope this helps! good luck!
Physical environment will determine the limited amount of resources that we could obtain to sustain our life.
During the process of obtaining this resource, humans are forced to connect/interact with one another.
This could happen in the form of competition where we prevent one another to obtain it , or in the form of cooperation where we work alongside each other to share the resource.
Erm.... when you are officially accepted into the college.