HIV crossed from chimps to humans in the 1920's in what is now the Democratic Republic of Congo. This was probably as a result of chimps carrying the Simian Immunodeficiency Virus (SIV), a virus closely related to HIV, being hunted and eaten by people living in the area.
Answer:mental life; observable behavior
Explanation: Mental life has a lot to do with how psychologists focus more on the physiological research in the 1920s and 1960s, but as times goes by, they emphasize more on observable behavior. Because both mental life and observable behavior work together for a good psychological result.
You will need to point the muzzleloader away from you because it may fire later.
<h3>What is hang fire?</h3>
The term hang fire occurs when the muzzleloader fails to fire at the instant that the trigger is pulled. This is a common experience among service men who have used weapons for a while.
When you experience a hang fire, make sure that you point the muzzleloader at a safe distance away from you because it may still fire at a latter time.
Learn more about muzzleloader: brainly.com/question/24938776
Answer:
subscapular bursa
Explanation:
The subscapularis muscle usually is a large muscle positioned across the frontal area of the shoulder blade. The subscapular bursa is situated just between the subscapularis muscle and the chest wall. When there is an inflammation of this bursa it is called subscapular bursitis.