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.
This means their habitat is also very diverse; some cockroach species live in humid conditions, dry conditions, hot places, cold places etc. Most species that are kept as pets live in humid environments in the tropics. These cockroaches are usually really big and easy to keep, which contributes to their popularity.he most common cockroach species that are kept as pets are the Madagascar Hissing Cockroach (Gromphadorhina portentosa), the Deathâs Head Roach (Blaberus craniifer) and the Indian Domino Cockroach (Therea petiveriana).