A positive feedback mechanism is the exact opposite of a negative feedback mechanism. ... In a positive feedback system, the output enhances the original stimulus. A good example of a positive feedback system is child birth. During labor, a hormone called oxytocin is released that intensifies and speeds up contractions.
Hope this helps :)
<span>He buys a new sports car every year, lives in the biggest house in his neighborhood, and always buys the most expensive clothes he can find. According to ... Failure to resolve conflict at a particular stage of psychosexual development may lead to failure to move forward psychologically, a phenomenon that Freud called</span><span>
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I encountered this question before but it had choices. The missing choices of this question are:
A- immigration
<span>B-Natural selection </span>
<span>C- Random mutations </span>
<span>D- Geographic isolation
My answer would be C - RANDOM MUTATIONS.
A. Immigration is not applicable because it states There has been no migration in or out of the population in the last 200 years.
B. Natural selection is not applicable because of it states that the recessive allele frequency has been 0%.
D. Geographic isolation is not applicable because it is not a factor in the increase in the recessive allele frequency.
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Stratus clouds are low clouds with a uniform layered base that are formed by rising thermals.
