All of the above is the answer
Answer:
Our bodies deliberately send more blood to an erectile tissue between the two nostrils to increase its size and direct the air flowing through one of the nostrils. After a few hours, the airflow switches to the other nostril.
Explanation:
I’ll bet most people don’t realize that when you breathe through your nose, you do so more from one nostril than the other and your body knows to switch to the other nostril every few hours. I had no idea. I’m only aware of any difference in my nostrils when I’m congested!
This nasal cycle is controlled by the autonomic nervous system which also controls things we don’t think about like heart rate and breathing
Why do we do this? Some scientists believe the alternating airflow allows each nostril to maintain optimal moisture levels so no one side gets dried out. It may also protect against respiratory infections or allergies.
Others believe it’s tied to our olfaction or sense of smell. It’s possible that the quicker and slower airflow in each nostril optimizes us to the vast range of smells. Some smells take longer to detect and transmit to the brain.
Responsible behavior should be based on rules of safety and motivated by a will to prevent injury to self and others.
<h3>What is Injury?</h3>
This is defined as the damage to the body of a individual as a result of accidents or attack.
Responsible behavior deals with someone putting safety first when performing various types of activities to prevent risk of injury.
Read more about Responsible behavior here brainly.com/question/3469090
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Answer:
Progesterone
Explanation:
Progesterone is sometimes called the “hormone of pregnancy” and has many roles relating to fetal development. It converts the endometrium to its secretory stage to prepare the uterus for implantation. At the same time, it affects the vaginal epithelium and cervical mucus, making them thick and impenetrable to sperm.
