How to Activate an LG 290C. Once you get a Straight Talk phone, you have to activate it. Itâs a pretty simple to do online, but you may find it useful to see an actual example â in this case a Straight Talk LG290C.ow to Activate an LG 290C. Once you get a Straight Talk phone, you have to activate it. Itâs a pretty simple to do online, but you may find it useful to see an actual example â in this case a Straight Talk LG290C.
Best example of positive feedback is the release of oxytocin during childbirth. Oxytocin is a reproductive hormone in females. Though it is also secreted in males, its function is yet unclear.
Positive feedback mechanisms. A positive feedback mechanism is the exact opposite of a negative feedback mechanism. With negative feedback, the output reduces the original effect of the stimulus.In a positive feedback system, the output enhances the original stimulus. A good example of a positive feedback system is child birth.ositive feedback mechanisms. A positive feedback mechanism is the exact opposite of a negative feedback mechanism. With negative feedback, the output reduces the original effect of the stimulus.