Affect is a psychological term for an observable expression of emotion. A person's affect is the expression of emotion or feelings displayed to others through facial expressions, hand gestures, voice tone, and other emotional signs such as laughter or tears. Individual affect fluctuates according to emotional state.
There are over 3,000 different species of cockroaches-some are considered pests while others are beneficial in their natural environment. The three main types of cockroaches commonly found in homes in South Africa include the German cockroach, Oriental cockroach and American cockroach.
Look at the size of the cockroach. This variety of cockroach are considered large cockroaches and can grow up to two inches in size. If you were to lay the cockroach next to an American quarter, the quarter would take up about three-fourths of the cockroachâs body.2. Notice the color of the roach. American cockroaches are unique from other cockroaches in that they have a red-brown color that has an amber look to it.Most other cockroaches are a muddy brown color. Check to see if the roach you are looking at has a reddish glow to it.otice the size of the cockroach. German cockroaches are slightly larger than Brown Banded roaches. They can grow to Â½ an inch long, which is about the exact same size as an American penny (again, minus the antenna).